Light of wavelength 500 nm illuminates a soap film ( n = 1.33). What is the minimum thickness of film that will give an interference maximum when the light is incident normally on it?
A)
24 nm
B)
94 nm
C)
188 nm
D)
279 nm
E)
376 nm
Question 2
If a fuse repeatedly blows, it should be replaced by a fuse of one step higher rating.
Indicate whether the statement is true or false