Physics Questions

Q:

The given symbol stands for a/an ___ in an electric circuit.

A) resistor B) plug key
C) electric bulb D) battery
 
Answer & Explanation Answer: C) electric bulb

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Q:

Which is the form of energy that does NOT occur while riding a bicycle?

A) Heat energy B) Kinetic energy
C) Chemical energy D) Mechanical energy
 
Answer & Explanation Answer: C) Chemical energy

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Q:

A spoon which looks bent is an example of which of the following?

A) Reflection B) Refraction
C) Retention D) Focus
 
Answer & Explanation Answer: B) Refraction

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Q:

Due to an acceleration of 1 m/s2 the velocity of a body increases from 15 m/s to 20 m/s in a certain period. Find the displacement (in m) of the body in that period.

 

A) 175 B) 625  
C) 87.5 D) 312.5
 
Answer & Explanation Answer: C) 87.5

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Q:

The instrument used for measuring air pressure is called .....

A) Anemometer B) Barometer
C) Hygrometer D) Thermometer
 
Answer & Explanation Answer: B) Barometer

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Q:

What is the value of acceleration due to gravity at the centre of earth?

A) -1 B) 0
C) 1 D) Infinity
 
Answer & Explanation Answer: B) 0

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Q:

If the resistance of a conductor is doubled, the current gets halved. This is because

A) I = V - R B) I = V/R
C) I = Rn/V D) I = VR
 
Answer & Explanation Answer: B) I = V/R

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Q:

What is the SI unit of pressure?

A) Newton B) Weber
C) Pascal D) Henry
 
Answer & Explanation Answer: C) Pascal

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