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David is observing his image in a plane ...

David is observing his image in a plane mirror. The distance between the mirror and his image is 4m. If he moves 1m towards the mirror, then the distance between David and his image will be

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The correct Answer is:
6m
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LAKHMIR SINGH & MANJIT KAUR-LIGHT-EXERCISEE
  1. In a convex spherical mirror, reflection of light takes place at :

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  2. Given a point source of light, which of the following can produce a di...

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  3. We wish to obtain an erect image of an object by using a concave mirro...

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  4. An object is placed at the following distances from a concave mirror o...

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  5. An object is placed at the following distances from a concave mirror o...

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  6. An object is placed at the following distances from a concave mirror o...

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  7. Which kind of lens can form an inverted image smaller than the objec...

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  8. Which kind of lens can form an erect image smaller than the object ?

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  9. Which kind of lens can form an inverted image smaller than the objec...

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  10. Which kind of lens can form an erect image smaller than the object ?

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  11. An object is placed at the following distances from a concave mirror o...

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  12. An object is placed at the following distances from a concave mirror o...

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  13. An object is placed at the following distances from a concave mirror o...

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  14. David is observing his image in a plane mirror. The distance between t...

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  15. The rear view mirror of a car is a plane mirror. The driver can see th...

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  16. The letter F is placed in front of a plane mirror How would its ima...

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  17. Which kind of lens can form an inverted image smaller than the objec...

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  18. Which kind of lens can form an erect image smaller than the object ?

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  19. State one way in which the image formed in a convex mirror is similar ...

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  20. Name any two letters of English alphabet in which the image formed in ...

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