The units of modulus of rigidity are

N - m

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N / m

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N - m^{2}

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N / m^{2}

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Solution

The correct option is D $N / m^{2}$
We know that the modulus of rigidity is defined as:
$Y = \frac{S t r e s s}{S t r a i n}$

Since strain is a dimensionless quantity. So its unit will be same as that of stress.
So, option $D$ is correct

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The units of modulus of rigidity are

The correct option is D N/m2We know that the modulus of rigidity is defined as:Y=StressStrainSince strain is a dimensionless quantity. So its unit will be same as that of stress.So, option D is correct

The correct option is D $N / m^{2}$
We know that the modulus of rigidity is defined as:
$Y = \frac{S t r e s s}{S t r a i n}$

Since strain is a dimensionless quantity. So its unit will be same as that of stress.
So, option $D$ is correct