Parallel beam of light is incident on a concave mirror with radius of curvature 
m which is subtending an angle 90° at C. The length on principal axis illuminated by reflected light –
A
m
B
C
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
A
length ilhuminated = x – f = 
– 
= 
– 
= 
m
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A student can distinctly see the object upto a distance 15 cm . He wants to see the black board at …
Two plane mirrors. A and B are aligned parallel to each other, as shown in the figure. A light ray …
A concave mirror of focal length is used to obtain the image of the sun which subtends an angle of…
A square of side is placed at a distance of from a concave mirror of focal length The centre of …
A thin rod of length lies along the axis of a concave mirror of focal length One end of its magni…
A ray of light falls on the surface of a spherical glass paper weight making an angle with the nor…