Physics Questions

Q:

At what temperature (in Fahrenheit) pure water freezes?

A) 32 B) 0
C) 48 D) 37
 
Answer & Explanation Answer: A) 32

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Q:

A galvanometer can be converted into a voltmeter by connecting with it a

A) high resistance in parallel B) low resistance on parallel
C) high resistance on series D) low resistance in series
 
Answer & Explanation Answer: C) high resistance on series

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Q:

Which of the following is an example of thermoplastics?

A) Bakelite B) Melamine
C) PVC D) No option is correct
 
Answer & Explanation Answer: C) PVC

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Q:

A lemon kept in water in a glass tumbler appears to be bigger than its actual size when viewed from the sides. This is because of

A) reflection of light B) internal reflection of light
C) refraction of light D) diffraction of light
 
Answer & Explanation Answer: C) refraction of light

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Q:

If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is same as that of earth and radius is half as that of earth is _________________.

 

A) 2g B) g/4
C) g/2 D) 4g
 
Answer & Explanation Answer: D) 4g

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Q:

Cryogenics is a branch of Physics that deal with ______.

A) very high temperatures B) very low temperatures
C) growth of extremely small crystals D) growth of extremely large crystals
 
Answer & Explanation Answer: B) very low temperatures

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Q:

Weight (W) of a body can be given by the formula

A) W = mv B) W = mf
C) W = ms D) W = mg
 
Answer & Explanation Answer: D) W = mg

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Q:

Sound travels at a speed of 333 m/s in the air, thus, in 1 s, a distance of 333 m is travelled by

A) source B) disturbace
C) particles D) receiver
 
Answer & Explanation Answer: B) disturbace

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