In: Physics
A rectangular piece of cardboard with an L-shaped hole is held 1.0m directly in front of a point source of light. The cardboard is 2.5m away from a wall. The cardboard and the wall are parallel. The height H of the L is 11.40cm. The width W of the L is 5.59cm.
How tall is the image of the L on the wall?
How wide is the image of the L on the wall?