Which statement is true about trends shown on the electromagnetic scale. a. as wavelength decreases, radiant energy and frequency increase b. as frequency decreases, radiant energy and wavelength increase c. as wavelength increases, radiant energy and frequency increase d. as wavelength increases, radiant energy, and wavelength decrease

Remember that λ, or wavelength, is proportional to (1/f), where f=frequency. That means that wavelength and frequency are inversely related. When one goes up, the other goes down, and vice versa. That means answers C and D are incorrect because those answers have wavelength and frequency in a direct relationship.

Radiant energy is directly proportional to frequency. When frequency increases, radiant energy increases. That means A) As wavelength decreases, radiant energy and frequency increase is the correct answer.

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