In case of thin lens of focal length f an object is placed at a distance `x_(1)` from first focus and its image is formed at a distance `x_(2)` from the second focus, find `x_(1) x_(2)`

In a concave mirror experiment, an object is placed at a distance x_(1) from the focus and the image is formed at a distance x_(2) from the focus. The focus length of the mirror would be

In a concave mirrorr experiment, an object is placed at a distance x_(1) from the focus and the image is formed at a distance x_(2) from the focus. The focus length of the mirrorr would be

An object is placed at a distance x_1 from the principal focus of a lens and its real image is formed at a distance x_2 from the another principal focus. The focal length of the lens is

In a concave mirror experiment, an object is placed at a distance x, from, the focus and the image is formed at a distance x_2 from the focus. The focal length of the mirror would be

In a concave mirror, an object is placed at a distance d_1 from the focus and the real image is formed aat a distance d_2 from the focus. Then the focal length of the mirror is :

In a concave mirror, an object is placed at a distance d_1 from the focus and the real image is formed aat a distance d_2 from the focus. Then the focal length of the mirror is :

With a concave mirror, an object is placed at a distance x_(1) from the princiipal focus, on the principal axis. The image is formed at a distance x_(2) from the principal focus. The focal length of the mirror is

With a concave mirrorr, an object is placed at a distance x_(1) from the principal focus, on the principal axis. The image is formed at a distance x_(2) from the principal focus. The focal length of the mirrorr is