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Satellite Remote Sensing

Work done in ...

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Work done in change the orbit of satellite from R1 to R2

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Q. Two satellites of mass

m_{1}

m_{2} (m_{1} > m_{2})

revolve round the earth in circular orbits of radii

r_{1}

r_{2}

(r_{1} > r_{2})

Their speeds are related as

Q. A satellite of earth of mass '

m

' taken from orbital radius

2 R

3 R

, then minimum work done is :-

Q. Two artificial satellite of masses

m_{1}

m_{2}

m_{1} > m_{2}

) are revolving round the earth in circular orbits of radii

r_{1}

r_{2}

r_{1} > r_{2}

) respectively. Which of the following statements is true regarding their speed

v_{1}

v_{2}

Q. Two satellites of masses

400 kg

500 kg

are revolving around earth in different circular orbits of radii

r_{1}

r_{2}

such that their kinetic energies are equal. The ratio of

r_{1}

r_{2}

Q. A planet of mass

M

, has two natural satellites with masses

m_{1}

m_{2}

. The radii of their circular orbits are

R_{1}

R_{2}

respectively. Ignore the gravitational force between the satellites. Define

v_{1}

L_{1}

K_{1}

T_{1}

to be, respectively, the orbital speed, angular momentum, kinetic energy and time period of revolution of satellite 1; and

v_{2}, L_{2}, K_{2}

T_{2}

to be the corresponding quantities of satellite 2. Given

m_{1} / m_{2} = 2

R_{1} / R_{2} = 1 / 4

, match the ratios in List - I to the numbers in List-II.

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