Physics Questions

Q:

What is the viscosity of an ideal fluid?

A) Equal to its mass B) Equal to its weight
C) Zero D) One
 
Answer & Explanation Answer: C) Zero

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Q:

Kinetic energy depends on

A) the velocity or speed of the moving body. B) the mass of the moving body
C) the pressure of the moving body D) both mass and velocity of the moving body
 
Answer & Explanation Answer: D) both mass and velocity of the moving body

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Q:

Fundamental duties are included in the Indian Constitution by the_________Amendment.

A) 44th B) 42nd
C) 26th D) 25th
 
Answer & Explanation Answer: B) 42nd

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Q:

If an object moves in a purely rotatory motion, then each constituent particle of the body moves in a circle, the centre of which is located on a line is called _______.

A) the axis of rotation B) the line of rotation
C) the spinning rod D) the fixed line
 
Answer & Explanation Answer: A) the axis of rotation

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Q:

The SI unit of intensity of sound is ______.

A) watt per square meter B) joule per square meter
C) newton per square meter D) tesla per square meter
 
Answer & Explanation Answer: A) watt per square meter

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Q:

Which one among the following components is used as an amplifying device?

A) Transformer B) Diode
C) Capacitor D) Transistor
 
Answer & Explanation Answer: D) Transistor

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Q:

What is the unit of the physical quantity, Illuminance?

A) siemens B) tesla
C) lux D) weber
 
Answer & Explanation Answer: C) lux

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Q:

If a body moves with a uniform speed in a circular motion, then______.

A) its acceleration is increasing B) its acceleration is zero
C) its velocity is changing D) its velocity is uniform
 
Answer & Explanation Answer: C) its velocity is changing

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