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Which of the following forms (s) a virtu...

Which of the following forms (s) a virtual and erect image fo all positions of the object?

A

convex lens

B

concave lens

C

convex mirror

D

concave mirror.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. Two beams of red and violet colours re mde to pass separaterly through...

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  2. A ray OP of monochromatic light is incident on the face AB of prism AB...

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  3. Which of the following forms (s) a virtual and erect image fo all posi...

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  4. A spherical surface radius of curvatue R seprates air (refractive inde...

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  5. A point object is placed at the centre of a glass sphere of radius 6 c...

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  6. The graph between object distance u and image distance v for a lens is...

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  7. A convex lens A of focal length 20 cm and a concave lens B of focal le...

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  8. The size of the image of an object,which is at infinity, as formed by ...

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  9. A convergeing lens is used to form an image on a screen.When the upper...

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  10. A point object is placed at a distance of 20 cmA point object is place...

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  11. A biconvex lens of focal length 15 cm is in front of a plane mirror.Th...

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  12. A concave lens of glass, refractive index 1.5 ,has both surfaces of th...

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  13. A double convex lens made from a material of refractive index mu1 is i...

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  14. A convex lens is in contact with concave lens .The magnitude of the ra...

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  15. A hollow doublew concave lens is made of very thin transparent materia...

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  16. A biconvex of focal length forms a circular image of radius r of sun ...

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  17. A real image of a distant object is formed by a plano-convex lens on i...

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  18. A ray of light passes through an equilateral glass prism,such that ang...

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  19. A ray of light is incident on an equilateral glass prism placed on a h...

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  20. A given ray of light suffers minimum deviation in an equilateral prism...

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