What should be the angle between two plane mirrorrs so that whatever be the angle of incidence, the incident ray and the reflected ray from the two mi

Question

What should be the angle between two plane mirrorrs so that whatever be the angle of incidence, the incident ray and the reflected ray from the two mi

What should be the angle between two plane mirrorrs so that whatever be the angle of incidence, the incident ray and the reflected ray from the two mirrorrs be parallel to each other
A. `60^(@)`
B. `90^(@)`
C. `120^(@)`
D. `45^(@)`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
(b) As incident ray and reflected ray are parallel to each other it means, deviation,
`delta=180^(@)`
`becausedelta=360^(@)-2theta`
Angle between two plane mirrors
`rArr theta=90^(@)`

5 views Answered 2023-02-05 15:29