SATHEE: Physics And Measurement Question 313

Physics And Measurement Question 313

Question: A suitable unit for gravitational constant is

[MNR 1988]

Options:

A) $k g - m \sec^{- 1}$

B) $N m^{- 1} \sec$

C) $N m^{2} k g^{- 2}$

D) $k g m \sec^{- 1}$

Show Answer

Answer:

Correct Answer: C

Solution:

$F = \frac{G m_{1} m_{2}}{d^{2}};$
$∴$ $G = \frac{F d^{2}}{m_{1} m_{2}} = N m^{2} / k g^{2}$

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