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A concave mirror is placed on a horizont...

A concave mirror is placed on a horizontal table with its axis directed vertically upward. Let O be the pole of the mirror C its center of curvature and F is the focus. A point object is placed at C. It has a real image, also located at C. If the mirror is now filled with water, the image will be

A

Real, at C

B

Real, located beyond C

C

Virtual, beyond C

D

Real an located before C

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-RAY OPTICS AND OPTICAL INSTRUMENTS-Assignment (Section - B) Objective Type Questions (One option is correct)
  1. A lens forms a sharp image on a screen. On inserting a parallel sided ...

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  2. For an eye kept at a depth h inside water is refractive index mu, and ...

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  3. A convex lens A of focal length 20cm and a concave lens B of focal len...

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  4. An equilateral triangular prism is made of glass (mu = 1.5). A ray of ...

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  5. White light is incident on the interface of glass and air as shown in ...

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  6. In a spherical paper weight (R = 10 cm) made of glass of refractive in...

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  7. A concave mirror is placed on a horizontal table with its axis directe...

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  8. Two prisms of same glass (mu = sqrt(2)) are stuck together without gap...

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  9. A short linear object of length b lies along the axis of a concave mir...

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  10. An object is placed 1m in front of the curved surface of a plano-conve...

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  11. Figure shows a torch sending a parallel beam of light fixed on a wall ...

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  12. A ray of light passes from vaccum into a medium of refractive index n....

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  13. A plane mirror is placed horizontally inside water (mu=4/3). A ray fal...

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  14. A thin lens focal length f and its aperture has diameter d. It forms a...

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  15. A tank contains a transparent liquid of refractive index mu. The botto...

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