Author Question: A film of thickness 106 nm soap bubble film (n = 1.42 ) results in a constructive interference in ... (Read 113 times)

jhjkgdfhk · **on:** Jul 29, 2018

A film of thickness 106 nm soap bubble film (n = 1.42 ) results in a constructive interference in the reflected light if this film is illuminated by a beam of light with a wavelength of 601 nm.

What are the next three thicknesses of this film that will also result in a constructive interference? A) 212 nm, 318 nm, 424 nm
B) 53.0 nm, 35.3 nm, 26.5 nm
C) 212 nm, 424 nm, 636 nm
D) 67.0 nm, 42.4 nm, 22.3 nm
E) 317 nm, 529 nm, 741 nm

Question 2

A 50-N object falling in air experiences 30 N of air resistance. The net force on the falling object is

A) 0 N.
B) 20 N.
C) 50 N.
D) 80 N.