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The lens

Question

A thin biconvex lens of refractive index μ2  and radii of curvatures R1  and R2  is placed between 2 medias of refractive index  μ1 and  μ3 as shown in figure:

Column 1

Column 2

Column 3

(I) R1=10cm

R2=10cm

(i) μ1=1

μ3=3/2

(P) μ2=1

 

(II) R1=10cm

R2=20cm

(ii) μ1=1

μ3=4/3

(Q) μ2=4/3

 

(III) R1=20cm

R2=10cm

(iii) μ1=3/2

μ3=4/3

(R) μ2=3/2

 

(IV) R1=10cm

R2

(iv) μ1=4/3

 μ3=4/3

(S) μ2=1712

 

 

Which of the following configuration will not cause any angular deviation in the light beam passing through it?

Moderate
Solution

For no deviation

μ3vμ1u=μ2μ1R1+μ3μ2R2=0No angular deviation means, u and vμ2μ1Rμ3μ2R=02μ2=μ1+μ3μ2=μ1+μ32 For (C)  (C) μ2=32+432=1712



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Similar Questions

Two thin lens made of glass μ=32 and water  μ=43 kept in contact with each other. An object is placed at point O. Assume all curved surfaces have equal radius.

Match the following Columns:

Column - IColumn – II

(A) 

(p) Final image of O will be real

(B) 

(q) Final image of O will be Virtual

(C) 

(r) Magnitude of focal length = 10 cm

(D) 

(s) Magnitude of focal length = 15 cm
 (t) Magnitude of focal length = 25 cm


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