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A plano-convex lens is made of material ...

A plano-convex lens is made of material having refractive index 1.5. The radius of curvature of curved surface is 60 cm. The focal length of the lens is ______ cm.

A

-60

B

120

C

60

D

-120

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TARGET PUBLICATION-OPTICS-EXERCISE
  1. Two convex lenses of focal lengths f(1)andf(2) form images with magnif...

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  2. The equiconvex lens has focal length f. If is cut perpendicular to the...

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  3. A plano-convex lens is made of material having refractive index 1.5. T...

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  4. A convex lens (with material of refractive index of 3/2) has two surfa...

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  5. A double convex lens has focal length 25 cm. The radius of curvature o...

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  6. The power of a biconvex lens is 10 dioptre and the radius of curvature...

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  7. A convex lens of glass (mu=1.5) has a focal length of 8 cm when placed...

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  8. A convex lens of glass (mu(g)=1.45) has focal length f(g) is air. The ...

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  9. A thin convex lens made from crown glass (mu=(3)/(2)) has focal f. Whe...

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  10. Two similar thin equiconvex lenses, of focal length f each, are kept c...

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  11. Two identical thin plano-convex glass lenses (refractive index 1.5) ea...

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  12. A plnao=convex lens fits exactly into a plano-concave lens. Their plan...

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  13. A plano-convex lens fits exactly into plano-concave lens as shown in t...

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  14. A comvex lens and a concave lens are placed in contact. The ratio of m...

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  15. Two identical glass (mu(w)=3//2) equiconvex lenses of focal length f e...

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  16. Two identical equiconvex lenses, each of focal length 'f' are placed s...

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  17. A bi-convex lens is formed with two thin plano convex lenses as shown ...

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  18. Two convex lenses of focal lengths f(1)andf(2) are separated co-axiall...

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  19. A diverging lens with magnitude of focal length 25 cm is placed at a d...

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  20. Assertion: There is no dispersion of light refracted through a rectang...

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