NEET | 2018Geometrical OpticsHard
Question
An astronomical refracting telescope will have large angular magnification and high angular resolution, when it has an objective lens of :-
Options
A.
small focal length and large diameter
B.
large focal length and small diameter
C.
large focal length and large diameter
D.
small focal length and small diameter
Solution
For astronomical refracting telescope
• Angular magnification is more for large focal length
of objective lens
• Resolving power =
Resolving power is high for large diameter.
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
An experiment is performed to find the refractive index of glass using a travelling microscope. In this experiment dista...A rod of length 10 cm lies along the principal axis of a concave mirror of focal length 10 cm in sucha way that its end ...Two thin slabs of refractive indicesμ2 and μ2 are placed parallel to each other in the x - y plane. If the fir...In the diagram shown, all the velocities are given with respect to earth. What the is the relative velocity of the image...A convex lens of length 40 cm is in contact with a concave lenses of focal length 25 cm. The power of the combination is...