Monochromatic light (? = 500 nm) is incident on a soap bubble (n = 1.40). How thick is the bubble (in nm) if destructive interference occurs in the reflected light?
a. 102
b. 179
c. 54
d. 1
e. 89
b
Physics & Space Science
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A very long straight wire carrying 2.0 A lies along the x-axis. A second very long parallel wire carrying 3.0 A in the same direction is positioned parallel to the x-axis and passes through the point (0, 1.0 m)
What is the magnitude of the magnetic field at the point (0, 0, 1.0 m)?
Physics & Space Science
The threshold of hearing is _______.
a. 0 dB. b. 180 dB. c. 200 dB. d. 70 dB. e. 1 dB.
Physics & Space Science
How do jets produced by radio galaxies differ from those of protostars?
What will be an ideal response?
Physics & Space Science
Annealed polycrystalline low-carbon iron has a tensile yield strength of
(a) Estimate the dislocation density of the cold-rolled iron.
(b) You must make some assumptions to solve this problem. Justify your assumptions.
Physics & Space Science