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A mobile phone lies along the principal ...

A mobile phone lies along the principal axis of a concave mirror as shown in Fig. Show by suitable diagram, the formation of its image. Explain why the magnification is not uniform, and distortion will occur depending on the location of the mobile with respect to the mirror.

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The ray diagram for the formation of image of the phone is shown in figure. The image of the part which is on the plane perpendicular to principal axis will be on the same plane. It will be the same size i.e., B'C = BC.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-RAY OPTICAL AND INSTRUMENTS-TEXTUAL EXAMPLES
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  8. (i) If f = 0.5 m for a glass lens, what is the power of the lens ? (...

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  9. (ii) The radii of curvature of the faces of a double convex lens are 1...

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  10. (iii) A convex lens has 20 cm focal length in air. What is focal lengt...

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  11. Find the position of the image formed by the lens combination given in...

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  12. What focal length should the reading spectacles have for a person for ...

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  13. The far point of a myopic person is 80 cm in front of the eye . What i...

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  14. The far point of a myopic person is 80 cm in front of the eye. What i...

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  15. c) The above person prefers to remove his spectacles while reading a b...

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  17. The near point of a hypermetropic person is 75 cm from the eye. What i...

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  18. The above person prefers to remove the spectacles while looking at the...

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