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Object is placed 60 cm away from convex ...

Object is placed 60 cm away from convex mirror. If magnification is 0.5, image distance = …....

A

-30

B

15

C

30

D

-15

Text Solution

Verified by Experts

The correct Answer is:
C
Magnification m=`(-v)/(u)`
`therefore1/2=-(v)/(-60)` [`because` u=-60 cm]
`therefore (60)/(2)`=v
`therefore` v = 30 cm
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KUMAR PRAKASHAN-RAY OPTICS AND OPTICAL INSTRUMENTS-SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs FROM .DARPAN. BASED ON TEXTBOOK)
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  11. Lateral magnification of an object by spherical mirror is 0.3. If foca...

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  13. PQ type incident radiation and RS is the reflected ray. They are both ...

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  14. Focal length of concave mirror is f and ratio of heights of object to ...

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  15. If f is focal length and v is image distance for spherical mirror, the...

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  16. If f is focal length and u is object distance for spherical mirror, th...

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  17. If image obtained from concave mirror of focal length f is (1/n)^(th) ...

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  18. An image of an object obtained by a convex mirror is n times smaller t...

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  19. If real image obtained from concave mirror of focal length f is n time...

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  20. In an experiment to find focal length of a concave mirror a graph is d...

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