Physics MCQ (Multiple Choice Questions) - SchoolingAxis

Physics MCQ (Multiple Choice Questions)

 Que- Electricity is transmitted over long distances 

a. It is fast 

b. There is less wastage of energy 

c. It is safer 

d. It is cheaper 


Answer- There is less wastage of energy


Que- We always see the same face of the moon, because 

a. It is smaller than the earth 

b. It revolves on its axis in adirection opposite to that ofthe earth 

c. It takes equal time for revolution around the earth and rotation on its own axis 

d. It rotates at the same speed as the earth around the sun 


Answer- It takes equal time for revolution around the earth and rotation on its own axis


Que- The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by 

a. Galileo 

b. Martin Luther 

c. Johannes Kepler 

d. Copernicus 


Answer- Johannes Kepler


Que- Stars are held together by 

a. Gravitational forces 

b. Electrical forces 

c. Ionic forces 

d. Magnetic forces 


Answer- Gravitational forces


Que- The number of waves per second in a sound is called ________ of that sound. 

a. Velocity  

b. Frequency  

c. Displacement  

d. Acceleration  


Answer- Frequency 


Que- Sound waves do not show the phenomenon of 

a. Refraction  

b. Interference  

c. Diffraction  

d. Polarisation  


Answer- Polarisation 


Que- Speed of sound is maximum in which among the following? 

a. Gases 

b. Vaccum 

c. Liquids 

d. Solids 


Answer- Solids


Que- The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because  

a. The ringing is not loud enough 

b. The glass of the bell jar absorbs the sound waves 

c. The bell jar is too small 

d. There is no air or any other gas in the bell jar 


Answer- There is no air or any other gas in the bell jar


Que- What is the full form of "RADAR" ? 

a. Radio Detecting and Ranging 

b. Region Device and Ranging 

c. Radio Detect and Rangs 

d. Radio Device and Ranging 


Answer- Radio Detecting and Ranging


Que- A cyclist leans inwards when he is negotiating a curve so that 

a. He may increase his speed 

b. His weight may be reduced 

c. Necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion. 

d. No frictional force may be produced between the wheels and the axle 


Answer- Necessary centripetal force may be available from the horizontal component of the normal reaction due to the track to maintain the curved motion.


Que- Knot is a measure of 

a. The speed of ship 

b. The curvature of spherical objects 

c. Solar radiation 

d. Intensity of earthquake shock 


Answer- The speed of ship


Que- A pilot has to release the bomb to hit a target 

a. Right above the target 

b. Beyond the target 

c. Before the target 

d. None of these 


Answer- Before the target


Que- What is the other name of Galileo's law of falling bodies? 

a. Law of motion 

b. Newton's first law 

c. Newton's second law 

d. Newton's third law 


Answer- Newton's first law


Que- A disk and a sphere of same radius but different masses roll on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ? 

a. Depends on their masses 

b. Sphere 

c. Disk 

d. Both reach at the same time 


Answer- Sphere


Que- The washing machine works on the principle of 

a. Dialysis 

b. Diffusion 

c. Reverse osmosis 

d. Centrifugation 


Answer- Centrifugation


Que- When an unbalanced force acts on an object 

a. Causes change in motion of the object 

b. The speed & direction of the object will change 

c. Causes the object to move 

d. All of the above 


Answer- All of the above


Que- What type of force acts on a car moving around a curve? 

a. Centrifugal force 

b. Cohesive force 

c. Centripetal force 

d. Gravitational force 


Answer- Centripetal force


Que- Damp clothes are dried in spin dryers by the action of 

a. Centripetal forces 

b. Centrifugal forces 

c. Central forces 

d. Non central forces 


Answer- Centrifugal forces


Que- The unit of noise pollution (level) is : 

a. Decibel 

b. Decimal 

c. Ppm 

d. None of these 


Answer- Decibel


Que- The speed of sound travel fastest through 

a. Liquid  

b. Solid  

c. Gas  

d. None of the above  


Answer- Solid 


Que- Compressions and Rarefactions are characteristic of 

a. Longitudinal waves 

b. Transverse waves 

c. Both A & B 

d. Neither of A & B 


Answer- Longitudinal waves


Que- Hertz is a unit for measuring 

a. Intensity of waves 

b. Frequency of waves 

c. Wavelength 

d. Clarity of waves 


Answer- Frequency of waves


Que- What is the direction of torque? 

a. Perpendicular to the direction of applied force 

b. Same as the direction of applied force 

c. Opposite to the direction of applied force 

d. Parallel to the radius 


Answer- Perpendicular to the direction of applied force


Que- The motion of a body around a circular path is an example of 

a. Uniform velocity, variable acceleration 

b. Uniform speed, uniform velocity 

c. Uniform speed, variable velocity 

d. Uniform speed, variable acceleration 


Answer- Uniform velocity, variable acceleration


Que- What should a person on a freely rotating turn table do to decrease his (angular) speed ? 

a. Bring his hands together 

b. Raise his hands up 

c. Spread his hands outwards 

d. Sit down with raised hands 


Answer- Spread his hands outwards


Que- A sphere rolls down on two inclined planes of different angles but same height, it does so 

a. In the same time 

b. With the same speed 

c. In the same time with the same speed 

d. In the same time with the same kinetic energy 


Answer- With the same speed


Que- If a body moves with a constant speed in a circle 

a. No work is done on it 

b. No force acts on it 

c. No acceleration is produced in it 

d. Its velocity remains constant 


Answer- Its velocity remains constant


Que- Which of the following is arranged in order of decreasing conductivity? 

a. Copper, Aluminium, Steel, Silver 

b. Aluminium, Silver, Copper, Steel 

c. Copper, Silver, Aluminium, Steel 

d. Silver, Copper, Aluminium, Steel 


Answer- Silver, Copper, Aluminium, Steel


Que- Every hot object emits ________  

a. X–rays 

b. Visible light 

c. Infrared rays 

d. Ultraviolet rays 


Answer- Infrared rays


Que- Which metal is the best conductor of heat? 

a. Silver 

b. Gold 

c. Copper 

d. All of the above 


Answer- Copper


Que- When hot liquid is poured into a thick glass tumbler, it cracks because glass : 

a. Is a bad conductor of heat so only inner surface expands 

b. Has high temperature coefficient of expansion 

c. Has a very low specific heat 

d. Has low temperature coefficient of expansion 


Answer- Is a bad conductor of heat so only inner surface expands


Que- Mud houses are cooler in summers and warmer in winters as compared to brick houses because 

a. Mud is a good conductor 

b. Mud is a bad conductor 

c. Mud is a poor insulator 

d. Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters 


Answer- Mud is a bad conductor


Que- Which of the following is an example of simple harmonic motion? 

a. Earth spinning on its axis 

b. Simple pendulum motion 

c. Ball bouncing on floor 

d. Motion of a ceiling fan 


Answer- Simple pendulum motion


Que- Boyle's law is a relationship between 

a. Pressure and volume 

b. Volume and temperature 

c. Volume and density 

d. Pressure and temperature 


Answer- Pressure and volume


Que- Which of the metals has the maximum thermal conductivity? 

a. Iron 

b. Aluminium 

c. Silver 

d. Copper 


Answer- Silver


Que- Which law relates to the ideal gas law? 

a. P1T1 = P2T2 

b. P1/V1 = P2/V2 

c. P1V1 = P2V2 

d. T1/V1 = T2/V2 


Answer- P1V1 = P2V2


Que- A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will 

a. Increase 

b. Decrease 

c. Remain unaffected 

d. Have its shape changed 


Answer- Increase


Que- If a band is played on the moon the sound will 

a. Reverberate 

b. Be heard by us faintly 

c. Be heard upto 10km from it 

d. Not be heard at any distance at all from it 


Answer- Not be heard at any distance at all from it


Que- The shape of our milky way galaxy is 

a. Circular 

b. Elliptical 

c. Spiral 

d. None of the above 


Answer- Spiral


Que- The colours of stars depend on their 

a. Temperature 

b. Distance 

c. Radius 

d. Atmospheric pressure 


Answer- Temperature


Que- The substance which conducts current in the solid state is 

a. Diamond 

b. Graphite 

c. Iodine 

d. Sodium chloride 


Answer- Graphite


Que- Electric current is measured by which instrument? 

a. Voltmeter 

b. Ammeter 

c. Barometer 

d. Sinometer 


Answer- Ammeter


Que- The rotational effect of a force on a body about an axis of rotation is described in terms of 

a. Centre of gravity 

b. Centripetal force 

c. Centrifugal force 

d. Moment of force 


Answer- Moment of force


Que- At hill stations, the boiling point of water will be 

a. Same as at sea level 

b. Less than that at sea level 

c. More than that at sea level 

d. Equal to the melting point of ice 


Answer- Less than that at sea level


Que- Instrument used to measure the force and velocity of the wind is 

a. Ammeter 

b. Anemometer 

c. Altimeter 

d. Audiometer 


Answer- Anemometer


Que- When pressure is increased the melting point of ice 

a. Increases 

b. Does not change 

c. Decreases 

d. Depends on the impurities in the ice 


Answer- Decreases


Que- The wall of a dam is made thicker at the bottom than at the top because the pressure exerted by the water on the wall 

a. Depends on the thickness of the wall 

b. Increases with height of the wall 

c. Increases with depth of the wall 

d. Depends on the area of the wall 


Answer- Increases with depth of the wall


Que- Sending a frame to a group of stations is known as 

a. Single casting 

b. Spreading 

c. Multicasting 

d. Casting 


Answer- Multicasting


Que- What is the full form of ''AM' regarding radio broadcasting? 

a. Amplitude Movement 

b. Anywhere Movement 

c. Amplitude Matching 

d. Amplitude Modulation 


Answer- Amplitude Modulation


Que- Radio waves sent out by a radio stations are reflected by 

a. Troposphere 

b. Stratosphere 

c. Mesosphere 

d. Ionosphere 


Answer- Ionosphere


Que- Bandwidth is the 

a. A measure of the width of a range of frequencies 

b. The rate of data transfer 

c. Both a & b 

d. None of the above 


Answer- Both a & b


Que- Negative feedback in amplifiers 

a. Increases bandwidth and decreases noise 

b. Decreases bandwidth and decreases noise 

c. Increases bandwidth and increases noise 

d. Decreases bandwidth and increases noise 


Answer- Increases bandwidth and decreases noise


Que- A concave lens always forms an image which is 

a. Real and erect 

b. Virtual and erect 

c. Real and inverted 

d. Virtual and inverted 


Answer- Virtual and erect


Que- Which one of the following determines the sharpness of image in a camera ? 

a. The aperture 

b. The exposure time 

c. The focal length of the lens 

d. Size of the camera 


Answer- The aperture


Que- Dioptre is the unit of 

a. Power of a lens 

b. Focal length of a lens 

c. Light intensity 

d. Sound intensity 


Answer- Power of a lens


Que- The part of the eye having the largest refractive index is : 

a. Cornea 

b. Aqueous humor 

c. Lens 

d. Vitreous humor 


Answer- Lens


Que- Vehicles use ________ to see the objects coming from behind. 

a. Concave lens 

b. Convex lens 

c. Convex mirror 

d. Concave mirror 


Answer- Convex lens


Que- Sound following a flash of lightning is called 

a. Stoning 

b. Bolting 

c. Thunder 

d. Cloud clash 


Answer- Thunder


Que- Acceptable noise level for human ear 

a. > 85 db 

b. = 85 db 

c. < 85 db 

d. None of the above 


Answer- < 85 db


Que- Decibel is a term connected with : 

a. Air 

b. Water 

c. Sound 

d. Soil 


Answer- Sound


Que- Decibel is the unit used for 

a. Speed of light 

b. Intensity of heat 

c. Intensity of sound 

d. Radio wave frequency 


Answer- Intensity of sound


Que- The speed of sound in air depends on 

a. Frequency  

b. Temperature  

c. Wavelength  

d. None of the Above  


Answer- Temperature 


Que- A tank filled partially with a liquid is subjected to a uniform horizontal acceleration. Which of the following is true for the surface of liquid in the tank? 

a. The liquid surface falls down on the direction of motion and rises up on the back side of the tank 

b. The liquid surface falls down only at the center of the tank 

c. The surface of the liquid remains horizontal 

d. None 


Answer- The liquid surface falls down on the direction of motion and rises up on the back side of the tank


Que- The lift of an aeroplane is caused by 

a. Law of gravitation  

b. Theorem of continuity  

c. Pascel's law  

d. Bernouli's theorem  


Answer- Bernouli's theorem 


Que- Which of the following instrument is used to measure Soil Water Tension? 

a. Photometer 

b. Pyrometer 

c. Psychrometer 

d. Tensiometer 


Answer- Tensiometer


Que- Blotting paper absorbs ink due to 

a. Capillary action phenomenon 

b. Diffusion of ink through the blotting 

c. Siphon action 

d. Viscosity of ink 


Answer- Capillary action phenomenon


Que- Name the process by which bubbles from liquid are formed? 

a. Effervescence 

b. Surface Tension 

c. Surface Energy 

d. Degasification 


Answer- Effervescence


Que- The distance between node and adjacent antinode is 30 cm. The wavelength is 

a. 30 cm. 

b. 90 cm. 

c. 120 cm. 

d. 60 cm. 


Answer- 60 cm.


Que- The material used in the fabrication of a transistor is 

a. Aluminium 

b. Copper 

c. Silicon 

d. Silver 


Answer- Silicon


Que- For which Diode is used ? 

a. Modulation 

b. Oscillation 

c. Amplification 

d. Purification 


Answer- Purification


Que- The complete form of 'IC' in electronics is 

a. Internal circuit 

b. Independent circuit 

c. Integrated circuit 

d. Inbuilt circuit 


Answer- Integrated circuit


Que- In electronics what comes under tank circuit ? 

a. Resistance and capacity 

b. Resistance and inductance 

c. Capacity and inductance 

d. Resistance, capacity and inductance 


Answer- Capacity and inductance


Que- Why does ice covered in sawdust not melt quickly ? 

a. Sawdust does not allow the air to touch the ice 

b. The water is absorbed by sawdust 

c. Sawdust is a bad conductor of heat 

d. Sawdust is good conductor of heat 


Answer- Sawdust is a bad conductor of heat


Que- Ice is packed in saw dust because 

a. Saw dust will not get melted easily. 

b. Saw dust is poor conductor of heat. 

c. Saw dust is a good conductor of heat. 

d. Saw dust does not stick to the ice. 


Answer- Saw dust is poor conductor of heat.


Que- In general, which is the cause of a sea breeze? 

a. Pressure 

b. Specific heat 

c. Heat 

d. All the above 


Answer- Specific heat


Que- Outside of cooking utensils are generally left black from below because 

a. It is difficult to clean daily. 

b. Black surface is a good conductor of heat. 

c. Black surface is a poor conductor of heat. 

d. Black surface is a good absorber of heat. 


Answer- Black surface is a good absorber of heat.


Que- Heat transfer by radiation mainly depends upon 

a. Kind and extent of its surface 

b. Its temperature 

c. Nature of the body 

d. All of the above 


Answer- All of the above


Que- The energy emitted by the Sun is due to 

a. Chemical reaction 

b. Nuclear fission 

c. Nuclear fusion 

d. All of the above 


Answer- Nuclear fusion


Que- Where does hydroelectric energy come from? 

a. Air 

b. Water 

c. Solar 

d. All of the above 


Answer- Water


Que- Which colour has the highest energy? 

a. Violet 

b. Red 

c. Blue 

d. White 


Answer- Violet


Que- Red is used as an emergency or danger signal as 

a. It is a striking colour 

b. Its wavelength is the longest 

c. It is scattered 

d. It has very high energy 


Answer- Its wavelength is the longest


Que- Which of these travels in glass with minimum velocity ? 

a. Red light 

b. Violet light 

c. Green light 

d. Yellow light 


Answer- Violet light


Que- A body falling through a liquid acquires a steady velocity is known as 

a. End velocity  

b. Touch down velocity  

c. Terminal velocity  

d. Steady state velocity  


Answer- Terminal velocity 


Que- The spoon dropped by an astronaut in a satellite will 

a. Fall to the floor 

b. Remain stationary 

c. Continue to follow the motion of the satellite 

d. Move tangentially away 


Answer- Continue to follow the motion of the satellite


Que- An aircraft can perform aerobatic manoeuvres in a vertical loop because of 

a. Gravity 

b. Centripetal force 

c. Weight 

d. Centrifugal force 


Answer- Gravity


Que- Which one is not a part of Kepler's Law? 

a. Law of orbits  

b. Law of areas  

c. Law of speed  

d. Law of periods  


Answer- Law of speed 


Que- Kepler's law of planetary motion states that the square of the time period is proportional to the 

a. Semi-major axis 

b. Square of the semi-major axis 

c. Cube of the semi-major axis 

d. Fourth power of the semi-major axis 


Answer- Cube of the semi-major axis


Que- Which of the following is a device designed to protect electrical devices from voltage spikes? 

a. Voltage unloader 

b. Surge protector 

c. Heat protector 

d. Current unloader 


Answer- Surge protector


Que- The working of the quartz crystal in the watch is based on the 

a. Piezo - electric Effect 

b. Edison Effect 

c. Photoelectric Effect 

d. Johnson Effect 


Answer- Piezo - electric Effect


Que- At low temperature, Lead behaves as a : 

a. Semi conductor 

b. Superconductor 

c. Insulator 

d. Conductor 


Answer- Superconductor


Que- The device which transfer the signal from low resistance region to high resistance region is 

a. Diode 

b. Transistor 

c. Capacitor 

d. Inductor 


Answer- Transistor


Que- The frequency of direct current is ________  

a. Zero 

b. 50 HZ 

c. 60 HZ 

d. 100 HZ 


Answer- Zero


Que- Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension? 

a. Pressure and Young's modules 

b. Planck's constant and Angular momentum 

c. Impulse and moment of force 

d. Force and rate of change of linear momentum 


Answer- Impulse and moment of force


Que- If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same: 

a. Velocity 

b. Momentum 

c. Acceleration 

d. Kinetic energy 


Answer- Momentum


Que- Pick out the scalar quantity 

a. Force 

b. Pressure 

c. Velocity 

d. Acceleration 


Answer- Pressure


Que- Rectifiers are used to convert: 

a. Direct current to Alternating current 

b. Alternating current to Direct current 

c. High voltage to low voltage 

d. Low voltage to high voltage 


Answer- Alternating current to Direct current


Que- Out of the following, which is not emitted by  radioactive substance? 

a. Electrons 

b. Electromagnetic radiations 

c. Alpha particles 

d. Neutrons 


Answer- Neutrons


Que- The domain theory of magnetism applies to 

a. Aluminium  

b. Copper  

c. Silver  

d. Cobalt  


Answer- Cobalt 


Que- The paramagnetic theory of magnetism applies to 

a. Nickel  

b. Mercury  

c. Iron  

d. Platinum  


Answer- Platinum 


Que- Where should a boat compass be mounted? 

a. Near magnet 

b. Near iron 

c. Away from electrical wiring 

d. All the above 


Answer- Away from electrical wiring

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