Question

11. Assertion : The strain produced in a stretched spring is shearing
Reason: When spring is stretched the length of.spring increases.
a. Assertion and reason both are correct and reason is correct
explanation for assertion.
b. Assertion and reason both are correct but reason is not correct
explanation for assertion.
c. Assertion is correct but reason is wrong.
-d. Assertion is wrong but reason is correct.​

Answer 1

Answer:

a. is the correct option

Answer 2

ASSERTION:

The strain produced in a stretched spring is shearing.

REASON:

When spring is stretched the length of spring increases.

Here, Assertion and Reason is both correct, but Reason is not the correct explaination for Assertion.

• First of all, force in a spring acts on the whole cross-section, and also develops torsion. This not only stretches and increases the length , but also changes the shape.

• Hence, we can say that strain developed is SHEAR AND LONGITUDINAL strain.

• However, the reason of change in length is not adequate to describe shear strain.

• OPTION B) is correct

$\star$ Hope It Helps.