Question

ऑन इंक्रीजिंग द लेंथ ऑफ द ट्यूब ऑफ़ कंपाउंड माइक्रोस्कोप मैग्नीफाइंग पावर​

Answer 1

Magnification in microscpoe is m=−

f

0

l

f

e

D

where, l is length of tube and D is least distance for clear vision

f

0

is focal length of objective

f

e

is focal length of eyepiece.

So, as l increases m increases.

Hence, magnifying power of microscope increases with increase in tube length.

Answer 2

Explanation:

Magnification in microscpoe is m= −

$\frac{1}{f0} \frac{d}{fe}$

where, l is length of tube and D is least distance for clear vision f0

is focal length of objective fe

is focal length of eyepiece.

So, as l increases m increases.

Hence, magnifying power of microscope increases with increase in tube length.

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