An astronomical telescope is said to be in normal adjustment when the

a

eye is accommodated

b

focal length of objective lens is longer than that of eye piece

c

final image is at the near point of eye

d

final image is at infinity

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Correct Option
d

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Discussions (11)

Kenhinde
3 years ago

An astronomical telescope is said to be in NORMAL adjustment when the distance between the objective lens and the eyepiece equals the sum of their focal lengths.

weirdos4
3 years ago

the answer is d bcuz of d final image of an object in astronomical telescope is formed at infinity

kelvino1234
5 months ago

There is no answer

excelemma
5 years ago

the answer is D
the final image is at affinity when the eye is relaxed

gas4man
13 years ago

If d final image

Raskyslim
12 years ago

D ans is D bcus wen an astronomical telescope is in is normal adjust ment d eye will b relax nd d image will b form at infinity

Matt_Breezy
9 years ago

i think d answer is C

The correct answer is "B" bcos when an astronomical telescope is in normal adjustment the image is formed with a long focal length of the objective lens and short focal length for the eyepiece

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