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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Q:

The side mirrors of vehicles are of which type of mirrors?

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

Explanation:
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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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Q:

Kelvin (K) is the unit of measurement of ________.

A) Density B) Pressure
C) Mass D) Temperature
 
Answer & Explanation Answer: D) Temperature

Explanation:
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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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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:

A sound of single frequency is called a

A) Hertz B) Tone
C) Pitch D) Note
 
Answer & Explanation Answer: B) Tone

Explanation:
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Q:

Propagation of sound can be visualised as propagation of ____________ variations in the medium

A) elasticity B) viscosity
C) density D) porosity
 
Answer & Explanation Answer: C) density

Explanation:
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