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The image formed by a convex mirror of f...

The image formed by a convex mirror of focal length `30 cm`. is a quarter of the object. What is the distance of the object from the mirror ?

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The correct Answer is:
`- 90 cm`
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PRADEEP-RAY OPTICS-Problem For Practice(a)
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  2. When the distance of an object from a concave mirror is decreased from...

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  3. Two objects A and B, when placed one after another in front of a conac...

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  4. A dentist concave mirror has a radius of curvature of 30 cm. How far ...

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  5. An object of size 10 cm is placed at a distance of 50 cm from a concav...

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  6. An object 2 cm high is placed at a distance of 16 cm from a concave mi...

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  7. An object is placed in front of a concave mirror of focal length 20 cm...

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  8. A concave mirror produces a real image 10 mm tall, of an object 2.5 mm...

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  9. A square object is placed 15 cm from a convex mirror of radius of cura...

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  10. The image formed by a convex mirror of focal length 30 cm. is a quarte...

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  11. Calculate the distance of an object of height h from a concave mirror ...

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  12. When an object is placed at a distance of 60 cm from a convex spherica...

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  13. An object is placed in front of a concave mirror of radius of curvatur...

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  14. A concave mirror of focal length 20 cm is placed at a distance of 50 c...

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  15. An object is placed 0.4 m from a convex mirror and a plane mirror is ...

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  16. Two plane mirror are inclined to eachother at an angle theta = 70^(@...

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  17. A rod AB = 10 cm in length is placed along the principal axis of a con...

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  18. Size of an object P is four times that of Q. It is required that the s...

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  19. An object is placed at a distance of 36 cm from a convex mirror. A pl...

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  20. A motor car is fitted with a convex driving mirror of focal length 20 ...

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