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 look

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

Question diagram: In an experiment to determine the focal length ( f ) of a co

Options:

Answer:

B

Solution:

Since object and image move in opposite directions, the positioning should be as shown in the figure. Object lies between focus and centre of curvature $f < x < 2 f .$ $∴$ Correct option is (b).

TestHub · Accepted Answer

Since object and image move in opposite directions, the positioning should be as shown in the figure. Object lies between focus and centre of curvature f < x < 2 f . ∴ Correct option is (b).

Physics - Geometrical Optics Question with Solution | TestHub

Options:

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