Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 8

MEDIUM

JEE Main/Advance

IMPORTANT

Earn 100

If $g_{1}$ and $g_{2}$ denote acceleration due to gravity on the surface of the earth and on a planet whose mass and radius is thrice that of earth, then

50% studentsanswered this correctly

Important Questions on Gravitation

HARD

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 9

At what height above the earth's surface does the value of

g

becomes

36 %

of the value at the surface of earth?

MEDIUM

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 10

A point mass when enters

d

depth below the earth's surface such that the

g

reduces by

1 %

then the value of

d

is [Take

R_{e} = 6400 km

]

MEDIUM

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 11

The ratio between masses of two planets is

3 : 5

and the ratio between their radii is

5 : 3

. The ratio between their acceleration due to gravity will be

MEDIUM

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 14

The weight of an object on the surface of the Earth is

40 N

. Its weight at a height equal to the radius of the Earth is

MEDIUM

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 15

The value of

g

at a depth

h

is two third the value that on the earth's surface. The value of

h

in terms of radius of earth

R

is

EASY

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 16

The value of acceleration due to gravity will be

1 %

of its value at the surface of earth at a height of

(R_{e} = 6400 km)

MEDIUM

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 17

If the radius of earth shrinks to

k R (k < 1)

, where

R

is the radius of Earth, then the time period of rotation of Earth, about its axis will become

HARD

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 18

Consider a ring of mass

m

and radius

r

. Maximum gravitational intensity on the axis of the ring has value.