General Physics Question 29
Question 29
- Give the MKS units for each of the following quantities.
(a) Young’s modulus
$(1980,3 \mathrm{M})$
(b) Magnetic induction
(c) Power of a lens
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Answer:
Correct Answer: 37. (a) $\mathrm{N} / \mathrm{m}^{2}$ (b) Tesla (c) $\mathrm{m}^{-1}$
Solution:
- (a) Young’s modulus $=\frac{F / A}{\Delta l / l}$
Hence, the MKS units are N/ $\mathrm{m}^{2}$.
(c) Power of a lens (in dioptre) $=\frac{1}{f(\text { in metre })}$
