Physics · Refraction of light through a prism, microscope and astronomical telescope (reflecting and refracting) and their magnifying powers
To increase the magnification of a telescope
To increase the magnification of a telescope
- A. the objective lens should be of large focal length and eyepiece should be of small focal length.
- B. the objective and eyepiece both should be of large focal length.
- C. both the objective and eyepiece should be of smaller focal lengths
- D. the objective should be of small focal length and eyepiece should be of large focal length
Step-by-step solution
Magnification of a telescope is M = f_obj / f_eyepiece. To increase M, increase f_obj or decrease f_eyepiece.
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