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An illuminated object is placed at a dis...

An illuminated object is placed at a distance of 20 cm from a converging lens of focal length 15 cm. The image obtained on the screen is:

A

upright and magnified

B

inverted and magnified

C

inverted and diminished

D

upright and diminshed

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b)
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LAKHMIR SINGH & MANJIT KAUR-REFRACTION OF LIGHT-Exercise
  1. Which one of the following materials cannot be used to make a lens ?

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  2. A small bulb is placed at the focal point of a converging lens. When t...

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  3. An illuminated object is placed at a distance of 20 cm from a convergi...

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  4. An object is placed between f and 2f of a convex lens. Which of the fo...

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  5. Given a point source of light, which of the following can produce a pa...

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  6. In order to obtain a real image twice the size of the with a convex le...

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  7. A converging lens is used to produce an image of an object on a screen...

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  8. A convex lens of focal length 8 cm forms a real image of the same size...

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  9. A virtual, erect and magnified image of an object is to be obtained wi...

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  10. A burning candle whose flame is 1.5 cm tall is placed at a certain dis...

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  11. A lens of focal length 12 cm forms an upright image three times the si...

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  12. If an object is placed 21 cm from a converging lens, the image formed ...

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  13. An object is placed at the following distances from a convex lens of f...

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  14. When an object is placed at a distance of 36 cm from a convex lens, an...

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  15. a) Draw a diagram to show how a converging lens focusses parallel rays...

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  16. Write the formula for a lens connnecting image distance (v), object di...

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  17. What is the nature of the image formed by a convex lens if the magnifi...

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  18. What is the nature of the image formed by a convex lens if the magnifi...

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  19. What is the position of image when an object is placed is at a distanc...

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  20. Describe the nature of image formed when an object is placed at a dist...

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