raw a ray diagram for the formation of image of a point object by a thin doubleconvex lens having radii of curvature R1 and R2. Hence derive lens maker’s formula

Sure, I can help you with that. Here are the step-by-step instructions to draw a ray diagram for the formation of an image of a point object by a thin double-convex lens:

Step 1: Start by drawing a horizontal line to represent the principal axis of the lens. Label the line as the principal axis.

Step 2: Draw a vertical line perpendicular to the principal axis and mark it as the optical center of the lens.

Step 3: Choose a point on the principal axis above the optical center and label it as the object point.

Step 4: Draw a ray from the object point parallel to the principal axis. This ray will pass through the lens and refract towards the optical center.

Step 5: Draw a second ray from the object point towards the optical center. This ray will pass through the center of the lens and continue in a straight line.

Step 6: Draw a third ray from the object point towards the lens, but at an angle towards the principal