Assertion : A body falling freely under the force of gravity has constant acceleration (9.81 m/sec 2 ). Reason : Earth attracts every body towards its centre by the same force.

If both Assertion & Reason are False

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion

If Assertion is True but the Reason is False

E M B I B E

Beta Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise (Assertion & Reason)>Q 10

EASY

NEET

IMPORTANT

Earn 100

Assertion : A person feels weightlessness in an artificial satellite of the earth. However a person on the moon (natural satellite) feels his weight.
Reason : Artificial satellite is a freely falling body and on the moon surface, the weight is mainly due to moon’s gravitational attraction.

50% studentsanswered this correctly

Important Questions on Gravitation

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise (Assertion & Reason)>Q 13

Assertion : The gravitational field of moon is much less than that of earth.
Reason : Gravitational field of a given mass (

M

) depends upon

\frac{M}{r^{2}}

, which is smaller for moon.

MEDIUM

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise (Assertion & Reason)>Q 14

Assertion : In keplar’s law conservation of angular momentum does not take place.
Reason : Gravitation force acting between earth and the sun is perpendicular to line joining them.

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise (Assertion & Reason)>Q 15

Assertion: On decreasing the distance between two masses potential energy increases.
Reason : Potential energy

U = \frac{G M m}{r}

.

MEDIUM

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise (Assertion & Reason)>Q 16

Assertion : A body falling freely under the force of gravity has constant acceleration (9.81 m/sec²).
Reason : Earth attracts every body towards its centre by the same force.

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise (Assertion & Reason)>Q 18

Assertion : A body kept inside a spherical shell does not experience any gravitational force.
Reason : The body inside a spherical shell is protected from the gravitational attraction of bodies outside the shell.

MEDIUM

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise (Assertion & Reason)>Q 19

Assertion : If value of acceleration due to gravity of a planet is lesser than earth then escape velocity from planet is lesser too.
Reason : Escape velocity just depends only on acceleration due to gravity.

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 11 - Gravitation>Exercise (Assertion & Reason)>Q 20

Assertion : If gravitational force is proportional to