Y= mgl r^2L formula would give Y if mg is doubled

JEE Main Physics question

formula would give if is doubled

(A)
(B)
(C)Correct
(D)Zero

Answer: (C)

Solution

If the hanging load (and hence the force) is doubled, the resulting elongation also doubles proportionally (Hooke's law), so the ratio used in the formula scales as

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-155045