A convex lens of focal length 0 24m and of refractive index 1 5 is completely immersed in water of - Physics - Ray Optics And Optical Instruments

Question

A convex lens of focal length​ 0 24m and of refractive index
1 5 is completely immersed in water of refractive index 1 33 Find
the change in focal length of the lens

Shobhit Mittal · Accepted Answer

Dear Student,
f=0 24 m , μ=1
5using lens maker formula1f=1 5-11R-1R'1R-1R'=10
5f 1f'=1 51 33-11R-1R'1f'=1 51 33-110 5*0 24 1f'=98-110
121f'=18 10 12f'=0 12*8=0
96 m change in focal length=f'-f=0 96-0
24=0 72 m Regards

A convex lens of focal length​ 0.24m and of refractive index 1.5 is completely immersed in water of refractive index 1.33. Find the change in focal length of the lens.

A convex lens of focal length 0.24m and of refractive index 1.5 is completely immersed in water of refractive index 1.33. Find the change in focal length of the lens.