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Questions  

From the dimensional consideration, which of the following equation is correct?

T- time period

G- universal gravitational constant

M- mass of earth

a
T=2πR3GM
b
T=2πGMR3
c
T=2πGMR2
d
T=2πR2GM

detailed solution

Correct option is A

By substituting the dimensions in T=2πR3GMwe get L3M−1L3T−2×M=T

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