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In order to obtain a real image twice th...

In order to obtain a real image twice the size of the with a convex lens of focal length 15 cm, the object distance should be:

A

more than 5 cm but less than 10 cm

B

more than 10 cm but less than 15 cm

C

more than 15 cm but less than 30 cm

D

more than 30 cm but less than 60 cm

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c)
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LAKHMIR SINGH & MANJIT KAUR-REFRACTION OF LIGHT-Exercise
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  11. When an object is placed at a distance of 36 cm from a convex lens, an...

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

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

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

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

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

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

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  18. At what distance from a converging lens of focal length 12 cm must an ...

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  19. State and explain the New Cartesian Sign Convention for spherical lens...

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  20. An object 4 cm high is placed at a distance of 10 cm from a convex len...

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