Physics Questions

Q:

Where is a transistor most likely to be found ?

A) Wrist watch B) Fuse
C) Hearing aid D) Fluorescent lamp
 
Answer & Explanation Answer: C) Hearing aid

Explanation:
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Q:

At what distance from the earth is gravity zero

Answer

Gravitational force is the force that binds everything at the surface of the earth. It holds at what distance from the earth is gravity zero. 

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Q:

Polarizing sunglasses are useful because they are able to

Polarizing sunglasses are useful because they are able to

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Q:

A ball rolling along the ground gradually slows down and finally comes to rest is due to ________.

A) Friction B) Magnetic force
C) Electrostatic force D) Muscular force
 
Answer & Explanation Answer: A) Friction

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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:

Instrument for measuring rainfall is called

A) Lucimeter B) Galactometer
C) Hyetometer D) Hygrometer
 
Answer & Explanation Answer: C) Hyetometer

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Q:

A transformer can do all of the following except

A) step­-up a/c voltage B) step­-up a/c current
C) step­-up a/c power D) step­-down a/c voltage
 
Answer & Explanation Answer: C) step­-up a/c power

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Q:

The reflector of a search light is a :

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

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