NEET UG PHYSICS MCQ: GRAVITATION

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Analyzing +4 | -1

Given below are two statements: One is labelled as
Assertion A and the other is labelled as Reason R.

Assertion A: A pendulum clock when taken to
Mount Everest becomes fast.

Reason R: The value of

g

(acceleration due to
gravity) is less at Mount Everest than its value on the
surface of earth.

In the light of the above statements, choose the
most appropriate answer from the options given
below

View answer and explanation

Correct option: A

A is not correct but R is correct

Option A (A is not correct but R is correct) is correct because a pendulum clock slows down on Mount Everest due to lower gravity, not speeds up, and the value of g is indeed less at Mount Everest.

More Questions from GRAVITATION

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If a particle of mass m is moving in a horizontal circle of radius r with a centripetal force

\left( { - K/{r^2}} \right)

the total energy is Suppose the law of gravitational attraction suddenly changes and becomes an inverse cube law i.e.

F \propto \frac{1}{r^3}

, but still remaining a central force. Then Two satellites A and B go round a planet P is circular orbits having radii 16 R and 2 R respectively. If the speed of satellite A is

6\,m{s^{ - 1}}

the speed of the satellite B will be [in m/s] nearly The total energy of satellite moving with an orbital velocity

v

around the earth is Two satellites of same mass are launched in the same orbit of radius

r

around the earth so as to rotate opposite to each other. If they collide inelastically and stick together as wreckage, the total energy of the system just after collision is Statement-1: There is almost no effect of rotation of earth at poles.
Statement-2: Because rotation of earth is about polar axis.