If the Poission.s ratio of a solid is 2/5. Find the ratio of its Young.s modulus to the rigidity modulus

If the Poission.s ratio of a solid is 2/5. Find the ratio of its Young

1.	If the Poission.s ratio of a solid is 2/5. Find the ratio of its Young.s modulus to the rigidity modulus
Answer» `5//4` `7//15` `14//9` `14//5` ANSWER :4