The primary mirror of a reflecting telescope has a focal length of

PHYSICS · Single correct · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments

Problem

150\,\text{cm}

, and the eyepiece has a focal length of

5\,\text{cm}

. What is the magnitude of the magnifying power of the telescope under normal adjustment? (a)

0.033

(b)

30

(c)

-30

(d)

31