A Young's Double-Slit Experiment Is Performed in Air and Then

question 71

Multiple Choice

A Young's double-slit experiment is performed in air and then the apparatus is submerged in water.What happens to the fringe separation,and what can be used to explain the change,if any?

• A)The separation stays the as it is the same experiment independent of the medium.
• B)The separation decreases because the frequency of the light decreases in the water.
• C)The separation increases because the wavelength of the light increases in the water.
• D)The separation decreases because the wavelength of the light decreases in the water.