1
NEET 2024 (Re-Examination)
+4
-1

An object of mass $$100 \mathrm{~kg}$$ falls from point $$A$$ to $$B$$ as shown in figure. The change in its weight, corrected to the nearest integer is ($$R_E$$ is the radius of the earth)

A
49 N
B
89 N
C
5 N
D
10 N
2
NEET 2024
+4
-1

The mass of a planet is $$\frac{1}{10}$$th that of the earth and its diameter is half that of the earth. The acceleration due to gravity on that planet is:

A
$$19.6 \mathrm{~m} \mathrm{~s}^{-2}$$
B
$$9.8 \mathrm{~m} \mathrm{~s}^{-2}$$
C
$$4.9 \mathrm{~m} \mathrm{~s}^{-2}$$
D
$$3.92 \mathrm{~m} \mathrm{~s}^{-2}$$
3
NEET 2024
+4
-1

The minimum energy required to launch a satellite of mass $$m$$ from the surface of earth of mass $$M$$ and radius $$R$$ in a circular orbit at an altitude of $$2 R$$ from the surface of the earth is:

A
$$\frac{5 G m M}{6 R}$$
B
$$\frac{2 G m M}{3 R}$$
C
$$\frac{G m M}{2 R}$$
D
$$\frac{G m M}{3 R}$$
4
NEET 2023 Manipur
+4
-1

The escape velocity of a body on the earth surface is $$11.2 \mathrm{~km} / \mathrm{s}$$. If the same body is projected upward with velocity $$22.4 \mathrm{~km} / \mathrm{s}$$, the velocity of this body at infinite distance from the centre of the earth will be:

A
$$11.2 \sqrt{2} \mathrm{~km} / \mathrm{s}$$
B
Zero
C
$$11.2 \mathrm{~km} / \mathrm{s}$$
D
$$11.2 \sqrt{3} \mathrm{~km} / \mathrm{s}$$
EXAM MAP
Medical
NEET