The focal length of lens of refractive index 1.5 in air is 30 cm . When it is immersed in a liquid of refractive index 
, then its focal length in liquid will be
Text Solution
Verified by ExpertsThe correct answer is:
C
By using 
=120 cm.
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 convex lens of power + 6 D is placed in contact with a concave lens of power – 4 D . What is the …
A lens of focal power 0.5 D is
A lens which has focal length of 4 cm and refractive index of 1.4 is immersed in a liquid of refrac…
A convex lens has 9 cm focal length and a concave lens has – 18 cm focal length. The focal length o…
A double convex thin lens made of glass of refractive index 1.6 has radii of curvature 15 cm each. …
A candle placed 25 cm from a lens, forms an image on a screen placed 75 cm on the other end of the …