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Tardigrade
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Physics
The dimension of the modulus of rigidity, is
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Q. The dimension of the modulus of rigidity, is
AIIMS
AIIMS 1994
Physical World, Units and Measurements
A
$\left[ ML ^{-2} T ^{-2}\right]$
14%
B
$\left[ MLT ^{-2}\right]$
18%
C
$\left[ ML ^{-1} T ^{-1}\right]$
16%
D
$\left[ ML ^{-1} T ^{-2}\right]$
52%
Solution:
The modulus of rigidity
$(\eta)=\frac{\text { Shearing stress }}{\text { Shearing strain }} $
$=\frac{F / A}{\phi}=\frac{\left[ MLT ^{-2}\right]}{\left[ L ^{2}\right]} $
$=\left[ ML ^{-1} T ^{-2}\right]$