999+ Physics Questions Answers Explanation MCQ

Q:

The ratio of the total distance travelled by a body to the total time taken by it is its __________________.

A) instantaneous velocity	B) linear velocity
C) average speed	D) acceleration

Answer & Explanation Answer: C) average speed

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Q:

The relative density of a substance is the ____.

A) ratio of its density to the density of water	B) ratio of the density of water to its density
C) product of the density of water to its density	D) ratio of the volume of water to its volume

Answer & Explanation Answer: A) ratio of its density to the density of water

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Q:

Match the following with the correct response.

(1) W	(A) Nm
(2) kW	(B) $3.6 x 10^{6} J$
(3) 1 kW-h	(C) 1000 W
(4) 1 HP	(D) 746 W

A) 1-D, 2-B, 3-C, 4-A	B) 1-A, 2-B, 3-C, 4-D
C) 1-A, 2-C, 3-D, 4-B	D) 1-A, 2-C, 3-B, 4-D

Answer & Explanation Answer: D) 1-A, 2-C, 3-B, 4-D

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Q:

If V/I is a constant, it is called:

A) Potential difference	B) Current
C) Coulomb	D) Resistance

Answer & Explanation Answer: D) Resistance

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Q:

Metals can be given different shapes according to our needs because they posses the properties of

A) Conductivity and sonorosity	B) Malleability and ductility
C) Malleability and sonorosity	D) Ductility and conductivity

Answer & Explanation Answer: B) Malleability and ductility

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Q:

One nanometer is

A) 10-11 m	B) 10-10 m
C) 10-8 m	D) 10-9 m

Answer & Explanation Answer: D) 10-9 m

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Q:

Light is a ______________ wave.

A) longitudinal	B) elastic
C) transverse	D) mechanical

Answer & Explanation Answer: C) transverse

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Q:

How many millimeters make ten kilometers?

A) 1010	B) 109
C) 108	D) 107

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