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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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Subject: Physics Exam Prep: Bank Exams

1 1603
Q:

When an unbalanced force acts on an object

A) causes change in motion of the object B) the speed & direction of the object will change
C) causes the object to move D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Unbalanced forces are the forces which causes change in motion of the object. It sets the object in motion and may cause the object to move. If the object is already in motion, it changes the speed and direction of the object.

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2 1602
Q:

Heat flows as a result of difference of _____.

A) Temperature B) Density
C) mass D) Volume
 
Answer & Explanation Answer: A) Temperature

Explanation:
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1 1602
Q:

An object of 10 kg is moving with a speed of 2 m/s. The kinetic energy of the object is

A) 20 J B) 25 J
C) 10 J D) 40 J
 
Answer & Explanation Answer: A) 20 J

Explanation:
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0 1601
Q:

The SI unit of resistance is:

A) Newton B) Coulomb
C) Ohm D) Joule
 
Answer & Explanation Answer: C) Ohm

Explanation:
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Exam Prep: AIEEE , Bank Exams , CAT

1 1601
Q:

The time taken by a pendulum to complete one oscillation is called its?

A) Maximum speed B) Average speed
C) Time period D) Time interval
 
Answer & Explanation Answer: C) Time period

Explanation:
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3 1598
Q:

For photoelectric effect to take place, the metal used as the cathode should have_________

A) high melting point B) low melting point
C) Low work function D) low resistance
 
Answer & Explanation Answer: C) Low work function

Explanation:
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2 1593
Q:

A particle is thrown vertically upward. When it reaches the highest point, it has ____________

A) a downward acceleration B) an upward acceleration
C) a downward velocity D) a horizontal velocity
 
Answer & Explanation Answer: A) a downward acceleration

Explanation:
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3 1591