1. The Young’s modulus of a -material defined as, Y = \(\frac {stress}{strain}\)
Since, rubber stretches more than steel ∆L for rubber is greater than that of steel, therefore (∆L/L of rubber) > (∆L/L of steel) Since, Y \(α \frac{1}{strain}\) and, strain = ∆L/L
Since the strain of rubber is greater, its Youngs modulus is less. Hence false,
2. The Stretching of a coil depends on the shear modulus of the material because for the coil to be stretched, a shear force has to applied to change the shape of the coil. Hence the statement is true.