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In an experiment to determine the focal ...

In an experiment to determine the focal length (f) fo a concave mirror by the u-v method, a student placed the object pin A on the principal axis at a distance x from the pole P. The student looks at the pin and its inverted image from a distance keepin his`//`her eye in line with PA. When the student shifts his`//`her eyes towards left, the image appears to the right of the object pin. Then,

A

`x ltf`

B

`f lt xlt2f`

C

x = 2f

D

`xgt2f`

Text Solution

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The correct Answer is:
B
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