send mail to email@example.com mentioning your email id and mobileno registered with us! if details not recieved
Resend Opt after 60 Sec.
Please verify your mobile number
Refer & Earn
My Abhipedia Earning
Kindly Login to view your earning
Beams of light are incident through the holes A and B and emerge out of box through the holes C – and D respectively, as Box shown in the figure.
Which of the following could be inside the box?
A rectangular glass slab
A convex lens
A concave lens
Here, the emergent rays are parallel to the direction of the incident ray. Therefore, a rectangular glass slab could be inside the box as the extent of bending of light ray at the opposite parallel faces AB (air-glass interface) and CD (glass-air interface) of the rectangular glass slab are equal and opposite. This is why the ray emerges parallel to the incident ray.
By: santosh ProfileResourcesReport error
Access to prime resources