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An object is placed 0.4 m from a convex...

An object is placed `0.4 m` from a convex mirror and a plane mirror is placed at a distance of `0.3 m` from the object. The images formed in the two mirrors coincide without parallex. What is the focal length of the convex mirror ?

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The correct Answer is:
`0.4 m`
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PRADEEP-RAY OPTICS-Problem For Practice(a)
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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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  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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