Physics Questions

Q:

If the angle of incidence formed on a concave mirror at a point is 30 deg then the angle of reflection will be

A) 15 deg B) 30 deg
C) 60 deg D) 90 deg
 
Answer & Explanation Answer: B) 30 deg

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Q:

Newton's first law is also known as _______.

A) Law of friction B) Law of moments
C) Law of Inertia D) Law of motion
 
Answer & Explanation Answer: C) Law of Inertia

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Q:

Unit of impedance is ___________.

A) ohm B) henry
C) tesla D) hertz
 
Answer & Explanation Answer: A) ohm

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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:

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:

_____ mirror is used in the headlights of cars.

A) Semi-circular B) Conical
C) Convex D) Concave
 
Answer & Explanation Answer: D) Concave

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Q:

What is the SI unit of Power?

A) Boyle B) Watt
C) Newton D) Pascal
 
Answer & Explanation Answer: B) Watt

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Q:

To convert temperature from Celcius to Kelvin scale, you must ___ the given temperature.

A) subtract 273 B) multiply 273
C) add 273 D) divide by 273
 
Answer & Explanation Answer: C) add 273

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