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At what distance from a concave mirror o...

At what distance from a concave mirror of focal length 10 cm should an object be plced so that :
(a) its real image is formed 20 cm from the mirror ?
(b) its virtual image is formed 20 cm form the mirror ?

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AI Generated Solution

To solve the problem, we will use the mirror formula: \[ \frac{1}{f} = \frac{1}{v} + \frac{1}{u} \] Where: - \(f\) = focal length of the mirror ...
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LAKHMIR SINGH & MANJIT KAUR-REFLECTION OF LIGHT -Exercise
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  3. At what distance from a concave mirror of focal length 10 cm should an...

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  4. If a concave mirror has a focal 10 cm, find the two positions where an...

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  5. A mirror forms an image which is 30 cm form an object and twice its hi...

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  6. What type of image/images are formed by : (a) a convex mirror ? (b...

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  7. Which mirror has a wider field of view ?

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  8. If you want to see an enlarged image of your face, state whether you ...

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  9. Which mirror always produces a virtual, erect and diminished image of ...

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  10. An object is placed at a long distance in front of a convex mirror of ...

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  11. Name the spherical mirror which can produce a real and diminished imag...

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  12. Name the sperical mirror which can produce a virtual and diminished im...

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  13. One wants to see a magnified image of an object in a mirror. What type...

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  14. Name the mirror which can given : (a) an erect and enlarged image of...

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  15. What type of mirror could be used : (a) as a shaving mirror ? (b) ...

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  16. Which type of mirror is usually used as a rear-view mirror in motor ca...

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  17. What kind of mirrors are used in big shopping centres to watch the act...

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  18. A ray of light going towards the focus of a convex mirror becomes para...

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  19. Fill in the folowing blank with a suitable word : A ray of light whi...

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  20. Whay does a driver prefer to use a convex mirror as a rear-view mirror...

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