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Last Updated On 23-10-2022 - By Sara

A plano convex lens of refractive index  and focal length  is kept in contact with another plano concave lens of refractive index  and focal length . If the radius of curvature of their spherical faces is R each and  are related as:

(a)

+ =3

(b)

=1

(c)

=1

(d)

=1


Question ID - 50244 :-

A plano convex lens of refractive index  and focal length  is kept in contact with another plano concave lens of refractive index  and focal length . If the radius of curvature of their spherical faces is R each and  are related as:

(a)

+ =3

(b)

=1

(c)

=1

(d)

=1

1 Answer
5876 Votes
3537

Answer Key : (b) -

= =

=

=

=1



Next Question :

Two electric dipoles,  A, B with respective dipole moments  = −4qa  and =−2qa  placed on the x-axis with a separation R, as shown in the figure

The distance from A at which both of them produce the same potential is

(a)

 

(b)

 

(c)

 

(d)

 


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