Multiple Choice
A small,perfectly reflecting Mylar disc,density 1.1 g/cm3,radius 0.15 mm,thickness 0.050 mm,is levitated by a laser,whose beam at the point of interaction of beam and disc is 0.35 mm in diameter.Assuming the disc is levitating in a horizontal orientation,what power does the laser emit?
A) 5.7 W
B) 7.8 W
C) 11 W
D) 16 W
E) 31 W
Correct Answer:
Verified
Correct Answer:
Verified
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