Monochromatic light (? = 500 nm) is incident on a soap bubble (n = 1.4) that is 50 mm thick. What is the change of phase of the light reflected from the front surface?
a. 0
b. 180°
c. ?/2
d. ?/2
e. 55°
b
You might also like to view...
A 6 cm diameter cooling coil tube has a surface temperature of 5ºC when air at 25ºC and 100 kPa flows around it at 10 m/s. Estimate the location on the tube where the maximum convection heat transfer coefficent occurs and determine the amount of heat transfer per unit area.
Which of the following statements is true of a bipolar flow?
A) It represents jets flowing in opposite directions away from a central object. B) It is similar to that of laminar and transient flows. C) It is not associated with Herbig-Haro objects. D) It is not associated with the asymptotic giant branch stars.
How is the angular magnification of a magnifier related to the focal length of the lens?
A. M = f/(25 cm) B. M = f*25 cm C. M = f + 25 cm D. M = (25 cm)/f
According to Einstein’s theory of special relativity, compared to stationary clocks moving clocks run
A. Faster B. at the same rate C. slower