A rectangular piece of cardboard with an L-shaped hole is held1.0m directly in front of a point source of light. The cardboard is1.5m away from a wall. The cardboard and the wall are parallel. Theheight H of the L is 15.40cm. The width W of the L is 7.08cm.
How tall is the image of the L on the wall?
How wide is the image of the L on the wall?
