Draw a labelled ray diagram of a reflecting type telescope. Write its any one advantage over refracting type telescope.
Asked by Topperlearning User | 11th Jun, 2014, 10:35: AM
The spherical aberration can be reduced by using parabolic mirror.It is cheap ,light and portable as compared to the astronomical telescope.
Answered by | 11th Jun, 2014, 12:35: PM
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