you are given a mask with a circular hole that is 4 cm in diameter, a bulb and a screen. you must produce a bright spot on the screen that is 5 times as large as the circular hole in the mask. the distance from the bulb to the mask is 12 cm.a)sketch your set up with similar triangles (sketch proportional!)b)show mathc)label the sketch with numbers and units, include:i) the bright spot on the screenii) the distance from the bulb to the screen
