Physics Questions

Q:

The motion of a freely falling body is an example of ________________________ motion.

A) uniformly accelerated B) non-uniformly accelerated
C) constant velocity D) constant speed
 
Answer & Explanation Answer: A) uniformly accelerated

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Q:

The side mirrors of vehicles are of which type of mirrors?

A) Convex B) Concave
C) Plane D) Inverted
 
Answer & Explanation Answer: A) Convex

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Q:

A person holding a pen in his left hand sees his reflection in the mirror holding the pen in his right hand. This is due to which of the following phenomena?

A) Diffused reflection B) Total internal reflection
C) Lateral inversion D) Refraction
 
Answer & Explanation Answer: C) Lateral inversion

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Q:

The frequency of direct current is _____________

A) Zero B) 50 HZ
C) 60 HZ D) 100 HZ
 
Answer & Explanation Answer: A) Zero

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Q:

The SI unit of acceleration is _______________.

A) meters per seconds squared B) meters per second
C) seconds per meter D) seconds per meter squared
 
Answer & Explanation Answer: A) meters per seconds squared

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Q:

Which of the following waves cannot be polarised?

A) Radio B) Ultra violet
C) Infrared D) Ultrasonic
 
Answer & Explanation Answer: D) Ultrasonic

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Q:

As a sailor jumps in the forward direction, the boat moves backwards. This example illustrates Newton's :

A) Second Law of Motion B) First and Second Law of Motion
C) Third Law of Motion D) First Law of Motion
 
Answer & Explanation Answer: C) Third Law of Motion

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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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