An object that is a perfect absorber and emitter of radiation is called a(n) _______________
Fill in the blank(s) with correct word
blackbody
black body
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What is the ratio of the light-gathering power of a telescope with a primary lens of diameter 10 m to a telescope with a primary lens of diameter 1 m?
A) 10 to 1 B) 1 to 10 C) 100 to 1 D) 1 to 100
The interior of a refrigerator has a volume of 0.600 m3. The temperature inside the refrigerator in 282 K, and the pressure is 101 kPa. If the molecular weight of air is 29 g/mol, what is the mass of air inside the refrigerator?
The ideal gas constant is R = 8.314 J/mol ? K = 0.0821 L ? atm/mol ? K. A) 500 g B) 560 g C) 140 g D) 270 g E) 750 g
The condition for total internal reflection can be predicted from Snell's law since
A) the index of refraction of glass is about 1.5. B) the index of refraction of plastic is about 1.5. C) the value of tangent can be 1.0. D) the maximum value of the sine is 1.0. E) the maximum value of the sine is 1.5.
The planet Jupiter is about 300 times as massive as Earth, yet on its surface you would weigh only about 3 times as much because
A) your mass is 100 times less on Jupiter. B) Jupiter is significantly farther from the Sun. C) Jupiter's radius is 10 times Earth's radius. D) you are 100 times more weightless there. E) none of the above