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A compound microscope has a magnifying p...

A compound microscope has a magnifying power `30`. The focal length of its eye-piece is `5cm`. Assuming the final to be at the least distance of distinct vision `(25 cm)`, calculate the magnification produced by objective.

A

`5`

B

`7.5`

C

`10`

D

`15`

Text Solution

Verified by Experts

The correct Answer is:
A
`m = m_(0) xx m_(e)`
`m_(e) = 1+(D)/(f_(e)) = 1+(25)/(5) = 6`
`m=- 30`
`-30 = m_(0)xx6 rArr m_(0) =- 5`
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CP SINGH-OPTICAL INSTRUMENTS-EXERCISES
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  2. The magnifying power of a compound microscope is

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  3. A compound microscope has a magnifying power 30. The focal length of i...

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  4. A compound microscope has an objective of focal length 2.0 cm and an e...

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  10. When the length of a microscope tube increases, its magnifying power

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