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A thin symmetrical double convex lens of...

A thin symmetrical double convex lens of power `P` is cut into three parts, as shown in the figure. Power of `A` is

A

`2 P`

B

`(P)/(2)`

C

`(P)/(3)`

D

`P`

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The correct Answer is:
B
N//a
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RESONANCE-GEOMATRICAL OPTICS -Exercise-1
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  3. A thin symmetrical double convex lens of power P is cut into three par...

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  4. In the figure shown, there are two convex lenses L(1) and L(2) having ...

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  5. An object is placed at a distance u from a concave mirror and its real...

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  6. A virtual erect image by a diverging lens is repesented by (u ,v ,f , ...

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  7. What should be the value of distance d so that final image is formed o...

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  8. A thin linear object of size 1mm is kept along the principal axis of a...

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  9. A biconvex lens is used to project a slide on screen. The slide is 2 c...

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  10. The minimum distance between a real object and its real image formed b...

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  11. Two planoconvex lenses each of the focal length of10cm&refractive inde...

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  12. A plano-convex lens, when silvered at its plane surface is equivalent ...

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  13. In the above question the radius of curvature of the curvature of the ...

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  14. The focal length of a plano-concave lens is -10 cm , then its focal le...

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  15. A convex lens of focal length 25 cm and a concave lens of focal length...

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  16. The dispersion of light in a medium implies that :

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  17. Critical angle of light passing from glass to air is minimum for

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  18. A plane glass slab is placed over various coloured letters. The letter...

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  19. A medium has nv = 1.56, nr=1.44. Then its dispersive power is:

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  20. All the listed things below are made of flint glass. Which one of thes...

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