CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Two mirrors placed at an angle of θ produces 5 images of an object placed symmetrically between the mirrors. The number of images produced when θ is decreased by 30 will be

A
14
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
13
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
11
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
12
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 11
Initially, number of images produced =5
n1=5 (symmetrical)
n=5+1=6
or, 360θ=6
θ=3606=60
Now, θ is decreased by 30
So, θ=θ30=6030=30
Now, n=36030=12
For symmetric placement of the object and n is even,
Number of images =n1=121=11

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon