Physics · PYQ NEET UG 2018

A block of mass \( m \) is placed on a smooth inclined wedge ABC of inclination \( \theta \) as shown in the figure. The wedge is given an acceleration 'a' towards the right. The relation between a and \( \theta \) for the block to remain stationary on the wedge is

1. A
   \( a = \frac{g}{\cos \theta} \)
2. B
   \( a = \frac{g}{\sin \theta} \)
3. C
   \( a = g \cos \theta \)
4. D
   \( a = g \tan \theta \)