Physics Questions

Q:

Contaminated rags are recommended for disposal in landfills.

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

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Subject: Physics
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2 2204
Q:

If an electron and a photon have the same wavelength, then they will have the same

A) velocity B) linear momentum
C) angular momentum D) energy
 
Answer & Explanation Answer: B) linear momentum

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1 2201
Q:

If electric resistance is to be decreased, then the number of resistances should be connected in ________________

A) Series B) Parallel
C) Mixed arrangement D) None of these
 
Answer & Explanation Answer: B) Parallel

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Q:

The washing machine works on the principle of ____________

A) Dialysis B) Diffusion
C) Reverse osmosis D) Centrifugation
 
Answer & Explanation Answer: D) Centrifugation

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1 2193
Q:

The path of a projectile is called its ______.

A) Altitude B) Range
C) Trajectory D) Flight
 
Answer & Explanation Answer: C) Trajectory

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Q:

Physical quantities, which have _______ only and no _______ are called scalar quantities.

A) direction, magnitude B) magnitude, direction
C) speed, velocity D) velocity, speed
 
Answer & Explanation Answer: B) magnitude, direction

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1 2191
Q:

In science a push or pull of an object is called ________.

A) Pick B) Lift
C) Force D) Shut
 
Answer & Explanation Answer: C) Force

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Q:

When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion?

A) Energy B) Displacement
C) Velocity D) Acceleration
 
Answer & Explanation Answer: A) Energy

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2 2183