Solution Found!
Calculate the focal length of a lens in water, given that
Chapter 26, Problem 126PP(choose chapter or problem)
Problem 126PP
Calculate the focal length of a lens in water, given that the index of refraction of the lens is nlens = 1.52 and its focal length in air is 25.0 cm. (Refer to Table.)
A. 57.8 cm
B. 66.0 cm
C. 91.0 cm
D. 104 cm
Questions & Answers
QUESTION:
Problem 126PP
Calculate the focal length of a lens in water, given that the index of refraction of the lens is nlens = 1.52 and its focal length in air is 25.0 cm. (Refer to Table.)
A. 57.8 cm
B. 66.0 cm
C. 91.0 cm
D. 104 cm
ANSWER:
Step 1 of 2
Here we need to find the focal length of the given lens when it is immersed in water. The given lens is having a focal length in air as and refractive index .
Given data,
Focal length of lens in air,
Refractive index of lens,
From Table 26-2, we have
Refractive index of water,
To find,
Focal length of lens in water,