1
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A satellite moves in a stable circular orbit round the earth if (where $$\mathrm{V}_{\mathrm{H}}, \mathrm{V}_{\mathrm{c}}$$ and $$\mathrm{V}_{\mathrm{e}}$$ are the horizontal velocity, critical velocity and escape velocity respectively)

A
$$\mathrm{V}_{\mathrm{H}}<\mathrm{V}_{\mathrm{c}}$$
B
$$\mathrm{V}_{\mathrm{H}}=\mathrm{V}_{\mathrm{e}}$$
C
$$V_H=V_c$$
D
$$V_H>V_e$$
2
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

There is a second's pendulum on the surface of earth. It is taken to the surface of planet whose mass and radius are twice that of earth. The period of oscillation of second's pendulum on the planet will be

A
$$2 \sqrt{2} \mathrm{~s}$$
B
$$2 \mathrm{~s}$$
C
$$\frac{1}{\sqrt{2}} \mathrm{~s}$$
D
$$\frac{1}{2} \mathrm{~s}$$
3
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For a satellite orbiting around the earth in a circular orbit, the ratio of potential energy to kinetic energy at same height is

A
$$\frac{1}{\sqrt{2}}$$
B
$$\frac{1}{2}$$
C
$$\sqrt{2}$$
D
2
4
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Periodic time of a satellite revolving above the earth's surface at a height equal to radius of the earth '$$R$$' is [ $$g=$$ acceleration due to gravity]

A
$$2 \pi \sqrt{\frac{2 R}{g}}$$
B
$$4 \pi \sqrt{\frac{2 R}{g}}$$
C
$$2 \pi \sqrt{\frac{R}{g}}$$
D
$$8 \pi \sqrt{\frac{\mathrm{R}}{\mathrm{g}}}$$
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