Gamma Question Bank for Medical Physics>Chapter 8 - Gravitation>EXERCISE>Q 12

MEDIUM

NEET

IMPORTANT

Earn 100

A satellite of mass $200 kg$ revolves around a planet of mass $5 \times 10^{30} kg$ in a circular orbit of radius $6.6 \times 10^{6} m .$ Binding energy of the satellite is

50% studentsanswered this correctly

Important Questions on Gravitation

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 8 - Gravitation>EXERCISE>Q 14

Escape velocity of an atmospheric particle which is

1000 km

above the earth's surface, is (radius of earth is

6400 km

and

g = 9.8 {ms}^{- 2}

)

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 8 - Gravitation>EXERCISE>Q 15

The ratio of kinetic energy required to be given to the satellite to escape from earth's surface to the kinetic energy required to be given to the same satellite to revolve around the earth in an orbit just above earth's surface, is

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 8 - Gravitation>EXERCISE>Q 16

A satellite is revolving around earth in a circular orbit at a uniform speed

v .

If gravitational force suddenly disappears, speed of the satellite will be

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 8 - Gravitation>EXERCISE>Q 17

Mark the correct statement

$(i)$ Escape velocity does not depend on mass of body

$(ii)$ If total energy of a satellite becomes positive, it escapes from earth

$(iii)$ Orbit of geostationary orbit is called parking orbit

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 8 - Gravitation>Assignment>Q 1

If escape velocity on the surface of earth is

11.2 km s^{- 1}

then the escape velocity from a planet whose mass is same as that on earth and radius

\frac{1}{9}

that of earth is

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 8 - Gravitation>Assignment>Q 2

The distance of two planets from sun are nearly

10^{10} m

and

10^{9} m

respectively. Their time period of rotation around the sun will be in the ratio of

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 8 - Gravitation>Assignment>Q 3

At what depth from the earth surface, the value of acceleration due to gravity will be half as that on the surface of earth? (

R

is radiusof earth )

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 8 - Gravitation>Assignment>Q 4

Which one of the following plots represent the variation of gravitational potential

(V)

with distance

(r)

due to a thin spherical shell of radius?(

r

is measured from the center of shell)