In a laboratory four convex lenses 
of focal length 2, 4, 6 and 8 cm respectively are available. Two of these lenses from a telescope of length 10 cm and magnifying power 4. The objective and eye lenses are respectively
a)
b)
c)
d)
In a laboratory four convex lenses of focal length 2, 4, 6 and 8 cm respectively are available. Two of these lenses from a telescope of length 10 cm and magnifying power 4. The objective and eye lenses are respectively
a)
b)
c)
d)
Question ID - 152587 | SaraNextGen Top Answer
In a laboratory four convex lenses of focal length 2, 4, 6 and 8 cm respectively are available. Two of these lenses from a telescope of length 10 cm and magnifying power 4. The objective and eye lenses are respectively
a)
b)
c)
d)
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In a laboratory four convex lenses |
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a) |
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b) |
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c) |
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d) |
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1 Answer
127 votes
Answer Key / Explanation : (d) -
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(d) Length of tube = 10 cm
Magnification
Putting in Eq. (I)
Hence, |
and 
will be used.127 votes
Answer Link
127