What should be the f number for a telescope?
Answers
Answered by
1
hai
for example
If you have a telescopewith a 1000mm focal length and a 20mm eyepiece, that eyepiece willdeliver 50 power (1000/20). The same eyepiece in a 2000mm focal lengthtelescope delivers 100 power (2000/20). Focal Ratio ... telescopesare rated with an "f" number.
I hope it's help you
for example
If you have a telescopewith a 1000mm focal length and a 20mm eyepiece, that eyepiece willdeliver 50 power (1000/20). The same eyepiece in a 2000mm focal lengthtelescope delivers 100 power (2000/20). Focal Ratio ... telescopesare rated with an "f" number.
I hope it's help you
Answered by
37
Answer:
The two advantages of a reflecting telescope over a refracting telescope are as follows: (i) There is no chromatic aberration in case of reflecting telescopes as the objective is a mirror. (ii) Spherical aberration is reduced in case of reflecting telescopes by using mirror objective in the form of a paraboloid.
Similar questions