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Q.

Young’s modulus of elasticity Y is expressed in terms of three derived quantities, namely gravitational constant G, Planck’s constant h and speed of light C as Y=CαhβGγ. Which of the following is correct option.

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a

α=7, β=−1,  γ=2

b

α=−7, β=1,  γ=−2

c

α=−7, β=−1,  γ=−2

d

α=7, β=−1,  γ=−2

answer is B.

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Detailed Solution

y=CαhβGγ

[M1L−1T−2]=[LT−1]α[M1L2T−1]β[M−1L3T−2]γ

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