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A spherical mirror and a thin spherical ...

A spherical mirror and a thin spherical lens have each a focal length of `- 15 cm`. The mirror and lens are likely to be

A

both concave.

B

both convex

C

the mirror is concave but the lens is convex.

D

the mirror is convex but the lens is concave.

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LAKHMIR SINGH & MANJIT KAUR-REFRACTION OF LIGHT-Exercise
  1. a) An object 3 cm high is placed 24 cm away from a convex lens of foca...

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  2. a) Find the nature, position and magnification of the images formed by...

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  3. A spherical mirror and a thin spherical lens have each a focal length ...

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  4. Linear magnification proudced by a convex lens can be: a) less than ...

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  5. Magnification produced by a concave lens is always:

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  6. In order to obtain a magnification of, -3(minus 3) with a convex lens,...

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  7. A convex lens produces a magnification of +5. The object is placed:

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  8. If a magnification of, -1(minus 1) is obtained by using a converging l...

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  9. To obtain a magnification of, -0.5 with a convex lens, the object shou...

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  10. An object is 0.09 m from a magnifying lens and the image is formed 36...

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  11. To obtain a magnification of -2 with a convex lens of focal length 10 ...

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  12. A convex lens of focal length 15 cm produces a magnification of +4. Th...

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  13. If a magnifcation of -1 is to be obtained by using a converging of foc...

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  14. In order to obtain a magnification of, -0.75 with a convex lens of foc...

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  15. A magnifying lens has a focal length of 100 mm. An object whose size i...

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  16. A lens forms a real image 3 cm high of an object 1 cm high. If the sep...

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  17. An object 50 cm tall is placed on the principle axis of a convex lens....

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  18. If the image formed by a lens is always diminished and erect, what is ...

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  19. Copy and complete the diagram below to show what happens to the rays o...

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  20. Which type of lenses are: a) Thinner in the middle than at the edges...

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