White light is spread out into spectral hues by a diffraction grating. If the grating has 1000 lines per cm, at what angle will red light (? = 640 nm) appear in first order?
a. 14.7°
b. 7.35°
c. 17.7°
d. 3.67°
e. 1.84°
d
Physics & Space Science
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Fill in the blank(s) with the appropriate word(s).
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What is the approximate density of the Earth?
A. 1 g/cm3 B. 5 g/cm3 C. 25 g/cm3 D. 50 g/cm3
Physics & Space Science
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a. True b. False Indicate whether the statement is true or false
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a. True b. False Indicate whether the statement is true or false
Physics & Space Science