NEET Physics Question - Uncategorized

Assertion (A): It is more difficult to open the door by applying the force near the hinge.nReason (R): Torque is maximum at hinge.

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

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

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Assertion (A) is true: Torque \(\tau = rF\sin\theta\) requires a larger force \(F\) for a smaller lever arm \(r\) (near the hinge). Reason (R) is false: Torque is zero at the hinge (pivot point) as \(r=0\). Thus, (A) is true, (R) is false.

Rankers Physics

Torque and Door Opening

Solution:

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