Physics Questions

Q:

Which glass is used to make spectacles?

A) Crook's glass B) Potash glass
C) Jena glass D) Soda glass
 
Answer & Explanation Answer: A) Crook's glass

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Q:

The greater the difference in _____________, the faster the air moves.

A) humidity B) pressure
C) altitude D) latitude
 
Answer & Explanation Answer: B) pressure

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Q:

Propagation of sound can be visualised as propagation of ____________ variations in the medium

A) elasticity B) viscosity
C) density D) porosity
 
Answer & Explanation Answer: C) density

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Q:

Which of the following device is used to measure humidity?

A) Hydrometer B) Hygrometer
C) Psycho Meter D) Anemometer
 
Answer & Explanation Answer: B) Hygrometer

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Q:

An anemometer measures which of the following ?

A) Speed of light B) Speed of wind
C) Speed of water current D) Speed of satellites
 
Answer & Explanation Answer: B) Speed of wind

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Q:

Which one of the following takes place during a nuclear fusion?

A) a heavy nucleus bombarded by neutrons breaks up B) a heavy nucleus breaks up spontaneously
C) two light nuclei combine to form a heavy nucleus D) a light nucleus breaks up spontaneously
 
Answer & Explanation Answer: C) two light nuclei combine to form a heavy nucleus

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Q:

Which among the following is false about displacement?

A) It can be positive, negative or zero B) Displacement is never greater than Distance
C) Its SI unit is meter D) It is always positive
 
Answer & Explanation Answer: D) It is always positive

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Q:

_______________ states that the ratio of the potential difference across a conductor to the current flowing through it, is a constant, provided that its physical conditions, such as temperature, remain constant.

A) Lenz's Law B) Hooke's Law
C) Ohm's Law D) The coulomb's law
 
Answer & Explanation Answer: C) Ohm's Law

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