Physics Questions

Q:

The color with the longest wavelength is

A) Red B) Violet
C) Indigo D) Orange
 
Answer & Explanation Answer: A) Red

Explanation:

Each color has a different wavelength.

 

Red has the longest wavelength and violet has the shortest wavelength.

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5 1109
Q:

Why metals conduct electricity?

A) Because of low melting point B) Because of high tensile strength
C) Because of free electrons D) Because of high atomic density
 
Answer & Explanation Answer: C) Because of free electrons

Explanation:
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0 1108
Q:

The greater the difference in _____________, the faster the air moves.

A) humidity B) pressure
C) altitude D) latitude
 
Answer & Explanation Answer: B) pressure

Explanation:
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1 1107
Q:

Which of the following has low resistivity?

A) Nichrome B) Glass
C) Ebonite D) Diamond
 
Answer & Explanation Answer: A) Nichrome

Explanation:
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Q:

Which one among the following is not an electro­magnetic wave?

A) X­-Ray B) R­-Ray
C) Cathode Ray D) Infrared Ray
 
Answer & Explanation Answer: C) Cathode Ray

Explanation:
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1 1106
Q:

If an object moves in a circular path with uniform ________, its motion is called uniform circular motion.

A) speed B) Time
C) Velocity D) Acceleration
 
Answer & Explanation Answer: A) speed

Explanation:
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0 1105
Q:

In a qualitative way, the tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called _________.

A) force B) acceleration
C) friction D) inertia
 
Answer & Explanation Answer: D) inertia

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3 1104
Q:

Electrons move around the nucleus in _______ motion.

A) translatory B) spin
C) orbital D) vibrational
 
Answer & Explanation Answer: C) orbital

Explanation:
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1 1103