MHT CET 2019 2nd May Evening Shift | Gravitation Question 107 | Physics

What is the minimum energy required to launch a satellite of mass ' $m$ ' from the surface of the earth of mass ' $M$ ' and radius ' $R$ ' at an altitude $2 R$ ?

$\frac{G M m}{2 R}$

$\frac{2 G M m}{3 R}$

$\frac{G M m}{3 R}$

$\frac{5 G M m}{6 R}$

MHT CET 2019 2nd May Morning Shift

MCQ (Single Correct Answer)

-0

The radius of the earth and the radius of orbit around the sun are 6371 km and $149 \times 10^6 \mathrm{~km}$ respectively. The order of magnitude of the diameter of the orbit is greater than that of earth by

$10^3$

$10^2$

$10^4$

$10^5$

MHT CET 2019 2nd May Morning Shift

MCQ (Single Correct Answer)

-0

If $W_1, W_2$ and $W_3$ represent the work done in moving a particle from $A$ to $B$ along three different paths 1,2 and 3 (as shown in fig) in the gravitational field of the point mass ' $m$ '. Find the correct relation between ' $W_1$ ', ' $W_2$ ' and ' $W_3$ '

MHT CET 2019 2nd May Morning Shift Physics - Gravitation Question 50 English

$W_1< W_3< W_2$

$W_1< W_2< W_3$

$W_1=W_2=W_3$

$W_1>W_3>W_2$

MHT CET 2019 2nd May Morning Shift

MCQ (Single Correct Answer)

-0

The kinetic energy of a revolving satellite (mass $m$ ) at a height equal to thrice the radius of the earth $(R)$ is

$\frac{m g R}{8}$

$\frac{m g R}{16}$

$\frac{m g R}{2}$

$\frac{m g R}{4}$

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