Q 1 :    

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

 

Assertion (A): The property of body, by virtue of which it tends to regain its original shape when the external force is removed, is elasticity.

 

Reason (R): The restoring force depends upon the bonded inter atomic and inter molecular force of solid.

 

In the light of the above statements, choose the correct answer from the given below:                                          [2024]

• (A) is false but (R) is true

   

• (A) is true but (R) is false

   

• Both (A) and (R) are true and (R) is the correct explanation of (A)

   

• Both (A) and (R) are true but (R) is not the correct explanation of (A)

   

Q 2 :    

The density and breaking stress of a wire are $6\times {10}^4$$\mathrm{kg}/{\mathrm{m}}^3$ and $1.2\times {10}^8$$\mathrm{N}/{\mathrm{m}}^2$ respectively. The wire is suspended from a rigid support on a planet where acceleration due to gravity is $\frac{1}{3}rd$ of the value on the surface of Earth. The maximum length of the wire with breaking is _____ m (take, g = 10 $\mathrm{m}/{\mathrm{s}}^2$).            [2024]