Choose the correct relationship between Poisson ratio $(\sigma)$. bulk modulus $( K )$ and modulus of rigidity $(\eta)$ of a given solid object:
  • A$\sigma=\frac{3 K -2 \eta}{6 K +2 \eta}$
  • B$\sigma=\frac{6 K +2 \eta}{3 K -2 \eta}$
  • C$\sigma=\frac{3 K+2 \eta}{6 K+2 \eta}$
  • D$\sigma=\frac{6 K -2 \eta}{3 K -2 \eta}$
JEE MAIN 2023, Medium
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