Two wires made of the same material are subjected to forces in the ratio of `1:4`. Their lengths are in the ratio `8:1` and diameter in the ration 2:1

Correct option is  A) 108°

Correct option is: (A) 2 : 1

Correct option is (C) 1 : 4 Let radii of both spheres are r and R respectively. \(\because\) \(\frac rR=\frac12\) \(\therefore\) Ratio of their surface areas \(=\frac{4\pi r^2}{4\pi R^2}\) \(=(\frac rR)^2=(\frac12)^2=\frac14\) = 1 : 4

Answer is : (c) 3

Correct Answer - It is a fact .

Correct Answer - C Mouth and body wall respectively

Correct Answer - A `(I_(max))/(I_(min))=((sqrt(I_1/I_2)+1)/(sqrt(I_1/I_2)-1))^2=((sqrt(4/1)+1)/(sqrt(4/1)-1))^2=9/1`

Correct option is: Natural

Correct Answer - 9 9