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Paul [167]
3 years ago
8

What is the magnification of an astronomical telescope whose objective lens has a focal length of 74 cm and whose eyepiece has a

focal length of 2.4 cm ? Follow the sign conventions.
Physics
1 answer:
Novay_Z [31]3 years ago
5 0

Answer:

The magnification of an astronomical telescope is -30.83.

Explanation:

The expression for the magnification of an astronomical telescope is as follows;

M=-\frac{f_o}{f_e}

Here, M is the magnification of an astronomical telescope, f_e is the focal length of the eyepiece lens and f_o is the focal length of the objective lens.

It is given in the problem that an astronomical telescope having a focal length of objective lens 74 cm and whose eyepiece has a focal length of 2.4 cm.

Put f_o=74 cm and f_e=2.4 cm in the above expression.

M=-\frac{74}{2.4}

M=-30.83

Therefore, the magnification of an astronomical telescope is -30.83.

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