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The least distance of distant vision for...

The least distance of distant vision for a young abult with normal vision is . . . . .

A

25 m

B

2 . 5 cm

C

25 cm

D

2 . 5 m

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Knowledge Check

  • The least distance of distinct vision for a young adult with normal vision is about …

    A
    25 m.
    B
    2.5 cm.
    C
    25 cm.
    D
    2.5 m.

  • Near point for a person having normal vision, D= …........

    A
    25 mm
    B
    25 cm
    C
    25 m
    D
    infinite

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    A compound microscope consists of and objective lens of focal lenght 2.0 cm and and eyepiece of focal length 6.25 cm separated by a distance of 15 cm . How far form the objectve should an object be placed in order to obtain the final image at (a) the least distance of distinctive vision (25 cm ), and (b) at infinity ? What is the magnifying power of the microscope in each case ?

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