Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Sunlight of intensity 1.3 kWm -2 is incident normally on a thin convex lens of focal length 20 cm. Ignore the energy loss of light due to the lens and assume that the lens aperture size is much smaller than its focal length. The average intensity of light, in kW m -2 , at a distance 22 cm from the lens on the other side is__________.
Text Solution
Verified by ExpertsThe correct answer is:
130.00
(130.00)
The area of A over which the light falls satisfy : Lens
so intensity at A = 100 x 1.3 =130 kW/m 2 .
──────────────────────────────────────────────────────────────────────────────────────────
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
PART I: PHYSICS
SECTION 1 (Maximum Marks: 24)
• This section contains SIX (06) questions.
• Each qu…
Consider a body of mass 1.0 kg at rest at the origin at time t = 0. A force is applied on the body…
A uniform capillary tube of inner radius r is dipped vertically into a beaker filled with water. Th…
In the figure below, the switches S 1 and S 2 are closed simultaneously at t = 0 and a current star…
Two infinitely long straight wires lie in the xy-plane along the lines x = ±R. The wire located at …
One mole of a monatomic ideal gas undergoes a cyclic process as shown in the figure (where V is the…