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Figure, shown two converging lenses. Inc...

Figure, shown two converging lenses. Incident rays are parallel to the principal axis. What should be the value of d so that final rays are also parallel?
Here, the diameter of ray beam become wider.

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`d=10+20=30cm`
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CENGAGE PHYSICS-GEOMETRICAL OPTICS-Exercise1.7
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  2. Figure, shown two converging lenses. Incident rays are parallel to the...

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  3. In Figure., find the position of final image formed.

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  4. In Fig. what should be the value of d so that image is formed on the ...

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  5. In Fig,, if the image of object O has to coincide with itself, then w...

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  6. A convex lens of focal length 20cm is placed 10cm away from a second ...

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  7. When an object is placed at the proper distance ot the left of a conve...

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  8. A telephoto combination consists of convex lens of focal length 30cm a...

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  9. A convex lens is cut in half along its principal axis and the two halv...

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  10. A plano-convex lens is silvered on its plane side. The radius of curva...

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  11. A convex lens of focal length 10cm is placed 30 cm in front of a secon...

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  12. A concave mirror of focal length 30 cm is placed on the flat horizont...

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  13. The convex side of a thin concavo-convex lens of glass of refractive i...

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  14. The source is placed 30 cm from a convex lens which has a focal length...

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  15. If final image after two refractions through the lens and one reflecti...

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  16. Point object O is placed at a distance of 20cm from a convex lens of f...

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  17. The focal length of a thin convex-lens is 30cm. At a distance of 10 cm...

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  18. A plano-convex glass lens (mu(g)=3//2) of radius of curvature R=10cm i...

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  19. On a horizontal plane mirror, a thin equiconvex lens of glass is place...

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  20. A pin is placed 10cm in front of a convex lens of focal length 20cm, m...

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