1. The diffraction phenomena that occurs during a double slit experiment is observable if there is only one slit instead. A.True B.False

2. Every point of a wave front may be considered the source of secondary wavelets that spread out in all directions with a speed equal to the speed of propagation of the wave. A.What is the wave-particle duality theory of light? B.What is Huygens’s Principle? C.What is the Maxwell Hypothesis?

3. If the double slit experiment is done over with even more slits, the intensity of each band __________, and the width of each band ________. A.increases, increases B.increases, decreases C.decreases, increases D.decreases, decreases