The focal lengths of the objective and the eyepiece of the telescope are 225 cm and 5 cm respectively. The magnifying power of the telescope will be
54
65
60
35
49

Question

The focal lengths of the objective and the eyepiece of the telescope are 225 cm and 5 cm respectively- The magnifying power of the telescope will be5465603549

Toppr Admin · Accepted Answer

The correct option is B 54Magnifying power of the telescope-x2212-fofe-xD7-1-feD-x2212-2255-xD7-1-525- -54

The focal lengths of the objective and the eyepiece of the telescope are 225 cm and 5 cm respectively. The magnifying power of the telescope will be5465603549

The correct option is B 54Magnifying power of the telescope=−fofe×(1+feD) =−2255×(1+525) =54

The focal lengths of the objective and the eyepiece of the telescope are 225 cm and 5 cm respectively. The magnifying power of the telescope will be
54
65
60
35
49

The correct option is B 54
Magnifying power of the telescope $= - \frac{f_{o}}{f_{e}} \times (1 + \frac{f_{e}}{D})$ $= - \frac{225}{5} \times (1 + \frac{5}{25})$ $= 54$