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A magnifying lens has a focal length of 100 mm. An object whose size is 16 mm is placed at some distance from the lens so that an image is formed at a distance of 25 cm in front of the lens?
a) What is the distance between the object and the lens?
Where should the object be placed and the lens?

Text Solution

Verified by Experts

a) `7.14 cm`
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LAKHMIR SINGH & MANJIT KAUR-REFRACTION OF LIGHT-Exercise
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  2. In order to obtain a magnification of, -0.75 with a convex lens of foc...

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

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

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

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

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

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

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

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

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

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

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

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  14. An object lies at a distance of 2f from a concave lens of focal length...

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  15. Show by drawing a ray-diagram that the image of an object formed by a ...

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  16. Give the position, size and nature of image formed by a concave lens w...

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  17. Which type of lens is: a) a converging lens, and which is (b) a diverg...

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  18. With the help of a diagram, explain why the image of an object viewed ...

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  19. How would a pencil look like if you saw it through a) a concave lens, ...

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  20. a) An object is placed 10 cm from a lens of focal length 5 cm. Draw th...

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