An image Y is formed of a point object x by a lens whose optic axis is AB as shown in Figure. Draw a ray diagram to locate the lens and its focus. If the image Y of object X is formed by a concave mirror (having the same optic axis AB) instead of lens, draw another ray diagram to locate the mirror and its focus. Write down the steps of construction of the ray diagrams.

An image I is formed of point object O by a lens whose optic axis is AB as shown in figure. (a) State whether it is a convex lens or concave? (b) Draw a ray diagram to locate the lens and its focus.

An image B is formed of a real point object A by a lens whose optic axis is XY. (a) Draw a ray diagram to locate the lens and its focus point. (b) If A and B are separated by 20 cm along the axis, find the focal length of the lens.

An image I is formed of a point object O by a mirror whose principal axis is AB as shown in figure. (a) State whether it is a convex mirror or a concave mirror . (b)Draw a ray diagram to locate the mirror and its focus . Write down the step of construction of the ray diagram. Consider the possible two cases. (1) When distance of I from AB is more than the distance of O from AB and (2) When distance of O from AB is more than the distance of I from AB

An image I is formed of a point object O by a mirror whose principal axis is AB as shown in figure. (a) State whether it is a convex mirror or a concave mirror . (b)Draw a ray diagra to laacate the mirror and its focus . Write down the step of construction of the ray diagram. Consider the possible two cases. (1) When distance of I from AB is more than the distance of O from AB and (2) When distance of O from AB is more than the distance of I from AB

Draw ray diagram to show the image formation of image when object is placed in front of a concave mirror between pole and focus.

Draw ray diagrams to show focus for a concave mirror

Draw ray diagrams for the cases of images obtained in concave mirrors: A ray diagram for object at focus for a concave mirror.

Show by drawing a ray-diagram that the image of an object formed by a concave lens is virtual, erect and diminished.

Draw ray diagrams for the cases of images obtained in concave mirrors: A ray diagram for object at infinity for a concave mirror.