Assertion : If objective and eye lens of a mcroscope are interchanged then it can work as telsecope. Reason : The object of telescope has large focal lengths.
Consider the following statements about a microscope and a telescope 1. Both the eyepiece and the objective of a microscope are convex lenses. 2. The focal length of the objective of a telescope is lerger than the focal length of its eyepiece. 3. The magnification of a telescope increases with the increases in focal length of its objective. 4. The magnification of a microscope increases with the increases in focal length of its objective. Which of the statements given above are correct?
Assertion : If objective and eye lenses of a microscope are interchanged then it can work as telescope. Reason : The objective of telescope has small focal length.
The objective of an astronomical telescope has a focal length of 80cm . The telescope is focused for normal vision of distant objects when the tube length is 1.0m .If the focal length of eye piece is f_(e) (in cm ) and magnifying power of telescope is m then the value of (f_(e))/(m) is :
The objective of a small telescope has focal length 120 cm and diameter 5 cm. The focal length of the eye piece is 2 cm. The magnifying power of the telescope for distant object is -
The aperture and focal length of the objective of telescope are large, why?
