Wave OpticsHard
Question
Four lenses having the focal length of = 15 cm, 20 cm, and + 250 cm respective are pro vided to make an astronomical telescope. The focal length of the eyepiece tproduce the largest magnification, should be :
Options
A.+ 250 cm
B.+ 155 cm
C.25 cm
D.+ 15 cm
Solution
In case of astronomical telescope, megnification = 
for maximum magnification, fe should be least. So, fe should be 15 cm.
for maximum magnification, fe should be least. So, fe should be 15 cm.
Create a free account to view solution
View Solution FreeMore Wave Optics Questions
The phase difference between two successive odd numbered half period zones is :...In the Young′s double slit experiment using a monochromatic light of wavelength λ, the path difference (in te...A ray of light incident on a thin film. As shown in figure M, N are two reflected rays and P, Q are two transmitted rays...Coherent sources can be obtained :...Two monochromatic and coherent point source of light are placed at a certain distance from each other in the horizontal ...