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A concave spherical surface of radius of...

A concave spherical surface of radius of curvature `10 cm` separates two mediums `X` and `Y` of refractive indices `4//3` and `3//2` respectively. Centre of curvature of the surfaces lies in the medium `X`. An object is placed in medium `X`.

A

Image is always real

B

Image is real if the object distance is greater than 90cm

C

Image is always virtual

D

Image is virtual only if the object distance is less than 90cm

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PHYSICS GALAXY - ASHISH ARORA-GEOMETRICAL OPTICS-Conceptual MCQs Single Option Correct
  1. The observer 'O' sees the distance AB as infinitely large. If refracti...

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  2. An infinitely long reactangular strip is placed on principal axis of a...

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  3. A concave spherical surface of radius of curvature 10 cm separates two...

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  4. In the figure. shown- a slab of refractive index (3)/(2) is movedat sp...

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  5. Light passes from air into flint glass with index of refraction n. The...

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  6. In the figure shown If the objectO moves towards the palne mirror ,the...

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  7. A person AB of height 170 cm is standing in front of a plane mirror. H...

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  8. In the figure shown, blocks P and Q are in contact but do not stick to...

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  9. A point object is moving along principal axis of concave mirror with u...

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  10. In the figure shown-, the maximum number of reflections light rays wil...

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  11. A convex lens is cut into twoparts in different ways that arearranged ...

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  12. A parallel beam of light passes parallel to the principal axis and fal...

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  13. An object and a plane mirror are shown in figure. Mirror is moved with...

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  14. A prism of angle A and refractive index 2 is surrounded by medium of r...

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  15. Two plane mirrors are joined together as shown. Two point objects A an...

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  16. The position of a real point object and its point image are as shown i...

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  17. The image of the moon is produced bya convex lens of focal length f. T...

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  18. A converging lens of focal length 20cmand diameter5cmis cut along the ...

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  19. A man stands on a glass slab of height h and inside an elevator accele...

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  20. When an object is at a distance u(1) and u(2) from the optical centre ...

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