Solve this: Q 3 A biconvex lens (μ = 1 5) of focal length 0 2 m acts as - Physics - Ray Optics And Optical Instruments

Question

Solve this:
Q 3 A biconvex lens ( μ = 1 5) of focal length 0 2 m acts as a
divergent lens of power 1 D when immersed in liquid Find the
refractive index of the liquid

Vijay Shankar Yadav · Accepted Answer

Dear Student,
Means now its focal length is f'=11D=1mearliar it was f=
2mso we have  1f=n-11R1+1R2 for biconvex lens hence for two cases f'f=n-1n'-1according to question 1
2=1 5-1n'-1n'-1= 01n'=1 01
Regards

Solve this: Q.3. A biconvex lens ( μ = 1.5) of focal length 0.2 m acts as a divergent lens of power 1 D when immersed in liquid. Find the refractive index of the liquid.

Solve this:
Q.3. A biconvex lens ( $μ$ = 1.5) of focal length 0.2 m acts as a divergent lens of power 1 D when immersed in liquid. Find the refractive index of the liquid.