Question

Select One Option Correct from the following :A small block of mass 0.1 kg lies on a fixed inclined plane PQ which makes an angle $\theta$ with the horizontal. A horizontal force of 1 N acts on the block through its centre of mass as shown in the figure. The block remains stationary if $[Take g = 10 m/s^2.]$
(A) $\theta = 45^{\circ}$
(B) $\theta \ \textgreater \ 45^{\circ}$ and frictional force acts on the block towards P
(C) $\theta \ \textgreater \ 45^{\circ}$ and frictional force acts on the block towards Q
(D) $\theta \ \textless \ 45^{\circ}$ and frictional force acts on the block towards Q

Answer 1

d option is correct.
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Answer 2

(A) $\theta = 45^{\circ}$

(B) $\theta \ \textgreater \ 45^{\circ}$ and frictional force acts on the block towards P

(C) $\theta \ \textgreater \ 45^{\circ}$ and frictional force acts on the block towards Q

✴️ (D) $\theta \ \textless \ 45^{\circ}$ and frictional force acts on the block towards Q