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 Physics Questions

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Q:

Contaminated rags are recommended for disposal in landfills.

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

Explanation:
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Subject: Physics
Exam Prep: Bank Exams

2 2162
Q:

Steel is more elastic than Rubber. True or False?

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

Explanation:

Elasticity is measured as ratio of stress to strain. For a given amount of stress, the strain produced in the steel is comparatively smaller than the strain produced in the rubber.


 


Therefore, with the help of Young's modulus, it can be concluded that steel has greater elasticity than rubber.

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Subject: Physics
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Q:

What is impulse equal to?

A) Change in momentum B) Change in force
C) Change in velocity D) Change in acceleration
 
Answer & Explanation Answer: A) Change in momentum

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Q:

Which mirror is used as rear view mirror in vehicles?

A) Concave B) Plane
C) Convex D) Any of the above
 
Answer & Explanation Answer: C) Convex

Explanation:

Convex mirror is used as rear view mirror in vehicles. Because the image is smaller, more image can fit onto the mirror, so a convex mirror provides for a larger field of view than a plane mirror. This is why they are useful.

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Q:

Intensity of any wave is proportional to which of the following?

A) amplitude B) Square of amplitude
C) Square root of amplitude D) Cube of amplitude
 
Answer & Explanation Answer: B) Square of amplitude

Explanation:
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Q:

_____ is same on every point on a rotating body.

A) Linear velocity B) Linear momentum
C) Angular torque D) Angular velocity
 
Answer & Explanation Answer: D) Angular velocity

Explanation:
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Q:

The path of a projectile is called its ______.

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

Explanation:
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Q:

Which type of radiation has the lowest penetrating ability?

A) Alpha B) Beta
C) Gamma D) All of the above
 
Answer & Explanation Answer: A) Alpha

Explanation:

In order of increasing penetration power, alpha particles have the lowest, then beta particles, then gamma rays.

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