JEE Advanced 2020 Concept Recapitulation Test 4 Paper 1

Question : 16 of 54

Marks: +1, -0

A spherical ball is hanging from an elastic rubber wire of young modulus Y, length ℓ and area A as shown in the figure. Find the time period of small vertical oscillations of the bob. [Take Y=106N∕m2,A=1mm2,ℓ=1m and m=1kg ]