1
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

The amount of work done to raise a mass ' $m$ ' from the surface of the Earth to a height equal to the radius of the Earth ' $R$ ' will be

A

$2 m g R$

B

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

C

$m g R$

D

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

2
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

The radius of Martian orbit around the Sun is about 4 times the radius of the orbit of Mercury. The Martian year is 687 Earth days. Then which of the following is the length of 1 year on Mercury?

A
172 earth days
B
124 earth days
C
88 earth days
D
225 earth days
3
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

A body weighs 48 N on the surface of the earth. The gravitational force experienced by the body due to the earth at a height equal to one-third the radius of the earth from its surface is:

A
32 N
B
36 N
C
16 N
D
27 N
4
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

The escape velocity for earth is $$v$$. A planet having 9 times mass that of earth and radius, 16 times that of earth, has the escape velocity of:

A
$$\frac{v}{3}$$
B
$$\frac{2 v}{3}$$
C
$$\frac{3 v}{4}$$
D
$$\frac{9 v}{4}$$

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