A flat mirror M is arranged parallel to a wal | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Since the mirror $M$ is perfectly parallel to the wall $W$,the angle of incidence for any light ray from the point source $S$ remains constant as

Vedclass · Accepted Answer

Both $(B)$ and $(C)$.

Vedclass · Answer

(D) Since the mirror $M$ is perfectly parallel to the wall $W$,the angle of incidence for any light ray from the point source $S$ remains constant as the mirror moves towards the wall. Because the mirror moves parallel to itself,the reflected ray path does not change its direction relative to the wall. Therefore,the position of the light spot on the wall remains stationary. Additionally,since the source $S$ is a point source,the reflected light forms a point image on the wall. As the mirror moves,the geometry of the reflection does not change,so the size of the light spot remains a point (i.e.,it remains the same). Thus,both statements $(B)$ and $(C)$ are correct,making $(D)$ the final answer.

$A$ flat mirror $M$ is arranged parallel to a wall $W$ at a distance $l$ from it. The light produced by a point source $S$ kept on the wall is reflected by the mirror and produces a light spot on the wall. The mirror moves with velocity $v$ towards the wall.

Similar Questions

$A$ ray gets successively reflected from two mirrors inclined at an angle of $40^o$. If the angle of incidence on the first mirror is $30^o$,then the net deviation of this ray after two reflections is: (in $^o$)

$A$ ray of light is incident on a plane mirror at rest. The mirror starts turning at a uniform angular acceleration of $4\pi \, rad/s^2$. The reflected ray at the end of $\frac{1}{4} \, s$ must have turned through......$^o$

$A$ ray of light is incident at $50^{\circ}$ on the middle of one of the two mirrors arranged at an angle of $60^{\circ}$ between them. The ray then touches the second mirror,gets reflected back to the first mirror,making an angle of incidence of.........$^{\circ}$

Two plane mirrors are inclined at $70^{\circ}$. $A$ ray incident on one mirror at an angle $\theta$ with the surface,after reflection,falls on the second mirror and is reflected from there parallel to the first mirror. The value of $\theta$ is ......$^{\circ}$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module