A wavelength of 540 nm yields a first-order maximum at 13.4° with a grating. At what angle will the second-order maximum appear for this wavelength?
a. No second-order maximum exists in this case.
b. 90°
c. –13°
d. 28°
e. 1.16°
d
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The greenhouse effect is bad for Earth
a. True b. False Indicate whether the statement is true or false
Which of the following characteristics describes silicate minerals?
-Silicate minerals contain only silicon. -Silicate minerals make up 8 percent of Earth's crust. -Silicate minerals contain calcite and dolomite. -Silicate minerals contain halite and gypsum. -Silicate minerals contain silicon and oxygen.
How does Rigel, a bluish star, surface temperature compare to Betelgeuse, a reddish star.
A. Rigel's surface temperature is less than Betelgeuse's. B. Rigel's surface temperature is greater than Betelgeuse's. C. They have the same surface temperature because they are both members of the constellation Orion. D. It is impossible to say without knowledge of the sizes of the stars.
If the number of turns on the transformer input is greater than the number on the output, then the transformer
A. outputs greater voltage than at the input. B. outputs less current than at the input. C. outputs greater voltage and current than at the input. D. outputs less voltage than at the input. E. increases the voltage but does not affect the current.