The wavelength of light in a thin film is 360 nm and the wavelength of light in vacuum is 469 nm. What is the index of refraction for the film?
A) 1.10
B) 1.30
C) 1.50
D) 1.70
E) 1.90
B
Physics & Space Science
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Sunburns are produced by
A) infrared light. B) visible light. C) ultraviolet light. D) all of the above E) none of the above
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A parallelogram is a four-sided figure with opposite sides that are
A) equal. B) parallel. C) at right angles. D) none of the above
Physics & Space Science
A planet with a higher reflectivity will do which of the following?
A) reflect more light and absorb less light B) reflect less light and absorb more light C) emit more light D) emit higher energy light E) transmit more light
Physics & Space Science
How much heat is needed to raise the temperature of 200 g of lead (c = 0.11 kcal/kg ? °C) by 10 C°?
A) 33.0 cal B) 330 cal C) 2000 cal D) 20 kcal
Physics & Space Science