AP EAPCET 2021 - 19th August Evening Shift | Gravitation Question 29 | Physics

The distance through which one has to dig the Earth from its surface, so as to reach the point where the acceleration due to gravity is reduced by 40% of that at the surface of the Earth, is (radius of Earth is 6400 km)

2560 km

3000 km

3260 km

1560 km

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

-0

Infinite number of masses each of 3kg are placed along a straight line at the distances of 1 m, 2m, 4m, 8m, ...... from a point O on the same line. If G is the universal gravitational constant, then the magnitude of gravitational field intensity at O is

1.0 G

2.0 G

3.0 G

4.0 G

AP EAPCET 2021 - 19th August Morning Shift

MCQ (Single Correct Answer)

-0

A particle is kept on the surface of a uniform sphere of mass 1000 kg and radius 1 m. The work done per unit mass against the gravitational force between them is

[G = 6.67 $$\times$$ 10$$^{-11}$$ Nm$$^2$$ kg$$^{-2}$$]

$$\mathrm{3.35\times10^{-10}~Jkg^{-1}}$$

$$\mathrm{-3.35\times10^{-10}~Jkg^{-1}}$$

$$\mathrm{6.67\times10^{-8}~Jkg^{-1}}$$

$$\mathrm{-3.35\times10^{-8}~Jkg^{-1}}$$

AP EAPCET 2021 - 19th August Morning Shift

MCQ (Single Correct Answer)

-0

The acceleration due to gravity at a height (1/20)th of the radius of Earth above the Earth's surface is 9 ms$$^{-2}$$. Its value at an equal depth below the surface of earth is

9 ms$$^{-2}$$

9.25 ms$$^{-2}$$

9.5 ms$$^{-2}$$

9.8 ms$$^{-2}$$

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