COMEDK 2025 Morning Shift | Gravitation Question 7 | Physics

A planet is 121 times heavier than moon and has a diameter 9 times that of moon. If the escape velocity on the planet is $v$, then the escape velocity on the moon will be:

$\frac{11 v}{3}$

$\frac{33 v}{8}$

$\frac{8 v}{33}$

$\frac{3 v}{11}$

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

-0

The acceleration due to gravity at pole and equator can be related as

$$g_e=g_p < g$$

$$g_e=g_p=g$$

$$g_e < g_p$$

$$g_e > g_p$$

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

-0

A satellite is revolving around the earth in a circular orbit with kinetic energy of $$1.69 \times 10^{10} \mathrm{~J}$$. The additional kinetic energy required for just escaping into the outer space is

$$3.38 \times 10^{10} \mathrm{~J}$$

$$1.69 \times 10^{10} \mathrm{~J}$$

$$0.89 \times 10^{10} \mathrm{~J}$$

$$1.35 \times 10^{10} \mathrm{~J}$$

COMEDK 2024 Afternoon Shift

MCQ (Single Correct Answer)

-0

A planet has double the mass of the earth and double the radius. The gravitational potential at the surface of the Earth is $$\mathrm{V}$$ and the magnitude of the gravitational field strength is $$\mathrm{g}$$. The gravitational potential and gravitational field strength on the surface of the planet are

	Potential	Field
A	V	$$\frac{g}{4}$$
B	2V	$$\frac{g}{2}$$
C	V	$$\frac{g}{2}$$
D	2V	$$\frac{g}{4}$$

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