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

# A point luminous object (O) is at a distance h from front face of a glass slab of width d and of refractive index μ on the back face of slab is reflecting plane mirror. An observer sees the image of object in mirror as shown in the figure. Distance of image from front face as seen by observer will be:

A
h+2dμ
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
2h+2d
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
H+d
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
H+dμ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

## The correct option is A h+2dμAs shown in figure glass slab will form the image of bottom i.e., mirror MM′ at a depth (dμ) from its front face. So the distance of object O from virtual mirror mm′ will be (h+dμ).Now as a plane mirror forms image behind the mirror at the same distance as the object is in front of it, the distance of image I from mm′ will be (h+dμ) and as the distance of virtual mirror from the front face of slab is (dμ), the distance of image I from front face as seen by observer will be =(h+dμ)+dμ=(h+2dμ)

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Apparent Depth
PHYSICS
Watch in App
Explore more
Join BYJU'S Learning Program