Physics

2 Questions , 0 Topics , 0 Articles
Four combinations of two thin lenses are given in List I. The radius of curvature of all curved surfaces is r and the refractive index of all the lenses is 1.5. Match lens combinations in List I with their focal length in List II and select the corre... Read more Four combinations of two thin lenses are given in List I. The radius of curvature of all curved surfaces is r and the refractive index of all the lenses is 1.5. Match lens combinations in List I with their focal length in List II and select the correct answer using the code given below the lists.
Description : This questions contains two matching lists. Choices for the correct combination of elements from List-I and List-II are given as options (A), (B), (C) and (D), out of which one is correct.
Tags : Physics
0 %
P-1, Q-2, R-3, S-4
0 %
P-2, Q-4, R-3, S-1
0 %
P-4, Q-1, R-2, S-3
0 %
P-2, Q-1, R-3, S-4

A transparent thin film of uniform thickness and refractive index n1= 1.4 is coated on the convex spherical surface of radius R at one end of a long solid glass cylinder of refractive index n2 = 1.5, as shown in the figure. Rays of light parallel to ... Read more A transparent thin film of uniform thickness and refractive index n1= 1.4 is coated on the convex spherical surface of radius R at one end of a long solid glass cylinder of refractive index n2 = 1.5, as shown in the figure. Rays of light parallel to the axis of the cylinder traversing through the film from air to glass get focused at distance f1 from the film, while rays of light traversing from glass to air get focused at distance f2 from the film. Then
Description : question has four choices (A), (B), (C) and (D) out of which ONE or MORE THAN ONE are correct.
Tags : Physics
0 %
|f1| =3R
0 %
|f1| =2.8R
0 %
|f2| =2R
0 %
|f2| =1.4R