WB JEE 2008 | Gravitation Question 1 | Physics

WB JEE 2008

MCQ (Single Correct Answer)

-0.25

If the earth shrinks such that its mass does not change but radius decreases to one quarter of its original value then one complete day will take

96 hrs

48 hrs

6 hrs

1.5 hrs

WB JEE 2008

MCQ (Single Correct Answer)

-0.25

The weight of a body on surface of earth is 12.6 N. When it is raised to a height half the radius of earth, its weight will be

2.8 N

5.6 N

12.6 N

25.2 N

WB JEE 2024

MCQ (Single Correct Answer)

-0.25

A satellite of mass $$\mathrm{m}$$ rotates round the earth in a circular orbit of radius R. If the angular momentum of the satellite is J, then its kinetic energy $$(\mathrm{K})$$ and the total energy (E) of the satellite are

$$\mathrm{K}=\frac{\mathrm{J}^2}{\mathrm{mR}^2}, \mathrm{E}=-\frac{\mathrm{J}^2}{2 \mathrm{mR}^2}$$

$$\mathrm{K}=\frac{\mathrm{J}^2}{2 \mathrm{mR}^2}, \mathrm{E}=-\frac{\mathrm{J}^2}{2 \mathrm{mR}^2}$$

$$\mathrm{K}=\frac{\mathrm{J}^2}{2 \mathrm{mR}^2}, \mathrm{E}=-\frac{\mathrm{J}^2}{\mathrm{mR}^2}$$

$$K=\frac{J^2}{2 \mathrm{mR}^2}, E=\frac{J^2}{\mathrm{mR}^2}$$

WB JEE 2023

MCQ (Single Correct Answer)

-0.25

Acceleration due to gravity at a height H from the surface of a planet is the same as that at a depth of H below the surface. If R be the radius of the planet, then H vs. R graph for different planets will be,

WB JEE 2023 Physics - Gravitation Question 2 English Option 1

WB JEE 2023 Physics - Gravitation Question 2 English Option 2

WB JEE 2023 Physics - Gravitation Question 2 English Option 3

WB JEE 2023 Physics - Gravitation Question 2 English Option 4

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