Physics, asked by asisrinivas, 1 year ago

A double convex lens of equal radii of curvature'R'and refractive index of material is 1.5. What is focal length?
please answer me fast.​

Answers

Answered by barotgopal
0

Answer:

Type your question...

12th

Physics

Ray Optics and Optical Instruments

Combination of Mirror and Lenses

A double convex lens has tw...

PHYSICS

A double convex lens has two surface of equal radii

R

and refractive index n=1.5. Find the focal length

f

December 20, 2019

avatar

Naveen Ravi

Share

Save

ANSWER

Given

Radius of curvature =R

focal length =f

Refractive index, μ=1.5

From lens maker's formula

f

1

=(μ−1)[

R

1

1

R

2

1

]

f

1

=(1.5−1)[

R

1

+

R

1

]

=0.5×

R

2

f

1

=

R

1

f=R

Similar questions