In an experiment to determine the focal length `(f)` of a concave mirror by the `u-v`
Channel: Doubtnut
Date: 2020-07-05

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,