Question

A telescope has focal length of objective and eye-piece as 200 cm and 5 cm respectively. What is the value of magnifying power ?

• A. 40
• B. 80
• C. 50
• D. .01

Answer 1

Answer: (A)

40

Answer 2

MP = $\frac { \mathrm { f } _ { 0 } } { \mathrm { f } _ { \mathrm { e } } } = \frac { 200 } { 5 } = 40$