A telescope has an objective lens of focal length $120\, ext{cm}$ and…

Question

A telescope has an objective lens of focal length $120\,	ext{cm}$ and an eyepiece of focal length $5\,	ext{cm}$. Its magnifying power is

Accepted Answer

C. 24

For a telescope, $m=f_o/f_e$. Thus $m=120/5=24$. So the telescope produces an angular magnification of 24.

Answer

12

Answer

20

Answer

125

A telescope has an objective lens of focal length $120\,\text{cm}$ and an eyepiece of focal length $5\,\text{cm}$. Its magnifying power is