Water is more elastic than air. Why?
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Why does sound travel faster in water than in air?
Does a magnetfying glass magnify more or less when it is used under water than in air? Expalin.
Part A
Identify the fringe or fringes that result from the interference of two waves whose path difference differs by exactly .
Part B
The same double-slit experiment is then immersed in water (with an index of refraction of 1.33) and repeated. When in the water, what happens to the interference fringes?
a. They are more closely spaced than in air by a factor of 1.33.
b. They are more widely spaced than in air by a factor of 1.33.
c. They are spaced the same as in the air.
d. They are shifted upward.
e. They are shifted downward.