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If a magnification of, -1(minus 1) is ob...

If a magnification of, `-1`(minus 1) is obtained by using a converging lens, then the object has to be placed:

A

withing f

B

at 2f

C

beyond 2f

D

at infinity

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b)
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If a magnification of, -1 (minus one) is to be obtained by using a converging mirror, then the object has to be placed :

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In order to obtain a magnification of, -0.75 with a convex lens of focal length 8 cm, the object should be placed:

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LAKHMIR SINGH & MANJIT KAUR-REFRACTION OF LIGHT-Exercise
  1. In order to obtain a magnification of, -3(minus 3) with a convex lens,...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  16. A ray of light is going towards the focus of a convex lens. Draw a ray...

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  17. a) What type of images can a convex lens make? b) What type of image...

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  18. Take down this figure into your answer book and complete the path of t...

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  19. Fill in the following blanks with suitale words: A) A convex lens ……...

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  20. Things always look small on viewing through a lens. What is the nature...

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