set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

The value of acceleration due to gravity

a) is least on equator

b) is least on poles

c) is same on equator and poles

d) increases from pole to equator

Question : 2

When pressure exerted on an enclosed liquid or gas at rest, is transmitted equally in all the directions, is in accordance with:

a) Archimedes' principle

b) Boyle's law

c) Pascal's law

d) Principle of floatation

Question : 3

A liquid is kept in a regular cylindrical vessel upto a certain height. If this vessel is replaced by another cylindrical vessel having half the area of cross-section of the bottom, the pressure on the bottom will

a) be increased to twice the earlier pressure

b) be reduced to half the earlier pressure

c) remain unaffected

d) be reduced to one-fourth the earlier pressure

Question : 4

Assertion :
The tidal waves in sea are primarily due to the gravitational effect of earth.
Reason :
The intensity of gravitational field of earth is maximum at the surface of earth.

a) Assertion is correct, reason is incorrect

b) Assertion is correct, reason is correct; reason is not a correct explanation for assertion

c) Assertion is correct, reason is correct; reason is a correct explanation for assertion.

d) Assertion is incorrect, reason is correct.

Question : 5

Which type/types of pen uses/use capillary action in addition to gravity for flow of ink?

a) Gel pen

b) Ballpoint pen

c) Fountain pen

d) Both ballpoint and gel pens

Question : 6

When a ship floats on water

a) the mass of water displaced is lesser than the mass of the ship

b) the mass of water displaced is equal to the mass of the ship

c) it displaces no water

d) the mass of water displaced is greater than the mass of the ship