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An object is placed at the following dis...

An object is placed at the following distances from a concave mirror of focal length 15 cm, turn by turn :
(a) 35 cm
(b) 30 cm
( c) 20 cm
(d) 10 cm
Which position of the object will produce :

A

a magnified real image ?

B

a magnified virtual image ?

C

a diminished real image ?

D

an image of same size as the object ?

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LAKHMIR SINGH & MANJIT KAUR-REFLECTION OF LIGHT -Exercise
  1. A virtual, erect and magnified image of an object is to be produced wi...

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  2. A concave mirror has a focal length of 25 cm. At which of the followin...

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

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  4. According to the "New Cartesian Sign Convention" for mirros, when sigh...

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  5. Which type of mirror has : (a) positive focal length ? (ii) negat...

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  6. What is the nature of a mirror having a focal length of, +10 cm ?

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  7. What kind of mirror can have a focal length of, -20 cm ?

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  8. In case of spherical mirrors, all distances are measured from………. .

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  9. What sign (+ve or -ve) has been given to the following on the basis of...

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  10. Sign Convention

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  11. Giving reasons, the 'signs' (positive or negative) which can be given ...

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  12. Sign Convention

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  13. One of the following does not apply to a concave mirror. This is :

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  14. If a magnification of, -1 (minus one) is to be obtained by using a con...

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  15. In order to obtain a magnification of, -0.6 (minus 0.6 ) with a concav...

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  16. An object is placed at a large distance in front of a concave mirror o...

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  17. Magnification produced by a rear view mirror fitted in vehicles

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  18. Between which two points of concave should an object be placed to obta...

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  19. At what distance from a concave mirror of focal length 10 cm should an...

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

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