1.

If the tube length of the astronomical telescope is 105 cm long and magnifying power is 20 for normal setting. Calculate the focal length of the objective. Given magnifying power(m)= m=f0fe.

Answer»

If the tube length of the astronomical telescope is 105 cm long and magnifying power is 20 for normal setting. Calculate the focal length of the objective. Given magnifying power(m)= m=f0fe.




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