JEE Advanced 2007 Physics question
In an experiment to determine the focal length (f) of a concave mirror by the u-v method, a student places 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 keeping his/her eye in line with PA. When the student shifts his/her eye towards left, the image appears to the right of the object pin. Then,
Solution
By parallax, when the eye moves sideways, the object nearer to the eye appears to move in the direction opposite to the eye relative to the farther object. The eye moves left and the image appears to the right of the pin, so the image is nearer to the eye than the pin, i.e. the image is farther from the mirror than
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