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Questions
1
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
A satellite is revolving round the earth with orbital speed ' $\mathrm{V}_0$ '. If it stops suddenly, the speed with which it will strike the surface of the earth would be ( $\mathrm{V}_{\mathrm{e}}=$ escape velocity of a particle on earth's surface)
A
$\frac{\mathrm{V}_{\mathrm{c}}^2}{\mathrm{~V}_0}$
B
$\quad 2 \mathrm{~V}_0$
C
$\sqrt{V_e^2-V_0^2}$
D
$\sqrt{\mathrm{V}_{\mathrm{e}}^2-2 \mathrm{~V}_0^2}$
2
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

The height at which the acceleration due to gravity becomes $\frac{g}{4}$ in terms of $R$ is $[R=$ the radius of the earth $]$

A
$\frac{R}{\sqrt{2}}$
B
R
C
$\sqrt{2} R$
D
$2 R$
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