Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6
Banner 7
Banner 8
Banner 9

Q.

An incident ray of light is falling on a plane mirror and getting reflected on a screen. If the mirror is now rotated with angular speed 20 rad/sec by keeping the incident ray fixed, then at what angular speed the reflected ray would be rotating?

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya

a

20 rad/sec

b

10 rad/sec

c

12.5 rad/sec

d

40 rad/sec

answer is D.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

Detailed Solution

The angular speed of the reflected ray is twice the angular speed of the mirror when the incident ray of light is kept fixed.
Watch 3-min video & get full concept clarity

courses

No courses found

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon
An incident ray of light is falling on a plane mirror and getting reflected on a screen. If the mirror is now rotated with angular speed 20 rad/sec by keeping the incident ray fixed, then at what angular speed the reflected ray would be rotating?