To derive the relevant formula for reflection by spher cal mirrors and refraction by lenses we must adopt sign conventions for measuring distances. Draw the ray diagram for the image formed by a concave lens

To derive the relevant formula for reflection by spher cal mirrors and refraction by lenses we must adopt sign conventions for measuring distances.State cartesian sign conventions used in ray optics.

To derive the relevant formula for reflection by spher cal mirrors and refraction by lenses we must adopt sign conventions for measuring distances.Show that f= R/2 In the case of concave mirror, where f is the focal length and R is the radius of curvature.

To derive the relevant formula for reflection by spher cal mirrors and refraction by lenses we must adopt sign conventions for measuring distances.Two lenses of powers +7D and -3D are combined. The focal length of the combination would be

The Image formed by a thin lens is shown in the figure. Draw the ray diagram showing above lens forming a magnified erect, virtual image

An object is placed 8 cm away in front of a concave mirror of focal length 5 cm. Find out the position of image and magnification. Find out whether the image is inverted or erect by drawing the ray diagram on a graph paper.