Physics Questions

Q:

Farad is unit of ___________.

A) Capacitance B) Reactance
C) Electric charge D) Electric conductance
 
Answer & Explanation Answer: A) Capacitance

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Q:

Density of water is maximum at ______.

A) 12 degree Celsius B) 8 degree Celsius
C) 4 degree Celsius D) 0 degree Celsius
 
Answer & Explanation Answer: C) 4 degree Celsius

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Q:

Find the work done (in J) when a charge of 24 C moves across a potential difference of 6 V.

A) 4 B) 72
C) 8 D) 144
 
Answer & Explanation Answer: D) 144

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Q:

A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of __________ .

A) gravitational force between train and man B) illusion of the man
C) the centripetal force D) pressure difference due to fast moving air in between
 
Answer & Explanation Answer: D) pressure difference due to fast moving air in between

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Q:

An image formed by a concave mirror on a screen is called __________?

A) Virtual image B) Real image
C) Inverted image D) Erect image
 
Answer & Explanation Answer: B) Real image

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Q:

Which of the following cannot be used for making lenses?

A) Plastic B) Soil
C) Glass D) Water
 
Answer & Explanation Answer: B) Soil

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Q:

The angle between the __________and the incident ray is called the angle of incidence.

A) surface B) normal
C) tangent D) reflected ray
 
Answer & Explanation Answer: B) normal

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Q:

______________ of a wave is the rate of transfer of energy per unit area perpendicular to the direction of travel of the wave.

A) Interference B) Rectification
C) Intensity D) Diffraction
 
Answer & Explanation Answer: C) Intensity

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