NEET2018Physics-Mechanics

NEET 2018 Physics Inclined Planes MCQ Question

Type: MCQ-conceptual-Medium-Class 11

A block of mass m is placed on a smooth inclined wedge ABC of inclination θ as shown in the figure. The wedge is given an acceleration ‘a’ towards the right. The relation between a and g for the block to remain stationary on the wedge is

Question diagram
A

a=gcscθa = \frac{g}{\csc \theta}

B

a=gsinθa = \frac{g}{\sin \theta}

C

a=gcosθa = g \cos \theta

D

a=gtanθa = g \tan \theta

Correct Answer

Option C

Detailed Explanation

For the block to remain stationary, the net force along the incline must be zero. This condition gives the relation between the acceleration of the wedge and gravitational acceleration.

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