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A pin of length 2.0 cm lies along the pr...

A pin of length 2.0 cm lies along the principal axis of a converging lens, the centre being at a distance of 11 cm from the lens. The focal length of the lens is 6 cm. Find the size of the image.

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The correct Answer is:
C

1/v_A+1/mu_A=1/f`
`rarr 1/v_A+1/10=1/6`
1/v_A=1/6-1/410=1/15`
`=v_A=15 cm`
`1/v_B+1/12=1/6 rarr v_B=62cm`
Length of image `=v_A-v_B=15-12=3cm`
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HC VERMA-GEOMETRICAL OPTICS-Exercises
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  2. A convex lens produces a double size real image when an object is plac...

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  3. A pin of length 2.0 cm lies along the principal axis of a converging l...

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  4. The diameter of the sun is 1.4 x 10^9 m and its distance from the eart...

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  5. A 5.0 diopter lens forms a virtual image which is 4 times the object p...

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  6. A diverging lens of focal length 12 cm and a converging mirror of foca...

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  7. A converging lens of focal length 12 cm and a diverging mirror of foca...

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  8. A converging lens and a diverging mirror are placed at a separation of...

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  9. A converging lens of focal length 15 cm and a converging mirror of foc...

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  10. Consider the situation described in the previous problem. Where should...

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  11. A converging lens of focal length 15 cm and a converging mirror of foc...

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  12. A point object is placed on the principal axis of a convex lens (f = 1...

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  13. A convex lens of focal length 20 cm and a concave lens of focal length...

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  14. A diverging lens of focal length 20 cm and a converging lens of focal ...

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  15. A 5 mm high pin is placed at a distance of 15 cm from a convex lens of...

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  16. A point object is placed at a distance of 15 cm from a convex lens. Th...

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  17. Two convex lenses each of focal length 10 cm, are placed at a saparat...

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  19. A particle is moving at a constant speed V from a large distance towar...

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