객관식
Which of the following statements about infrared radiation is true?
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9. Quantum Mechanics
Wavelength and Frequency
객관식
Among the following types of electromagnetic radiation, which has the longest wavelength and which has the highest frequency?
A
Radio waves have the longest wavelength; gamma rays have the highest frequency.
B
Gamma rays have the longest wavelength; radio waves have the highest frequency.
C
Ultraviolet light has the longest wavelength; infrared has the highest frequency.
D
Visible light has the longest wavelength; X-rays have the highest frequency.
검증된 단계별 안내1
Recall the relationship between wavelength (\( \lambda \)) and frequency (\( \nu \)) of electromagnetic radiation, which is given by the equation:
\[ c = \lambda \times \nu \]
where \( c \) is the speed of light (approximately \( 3.00 \times 10^{8} \, \text{m/s} \)).
Understand that wavelength and frequency are inversely related: as wavelength increases, frequency decreases, and vice versa.
Identify the types of electromagnetic radiation listed: radio waves, gamma rays, ultraviolet light, infrared, visible light, and X-rays.
Recall the general order of electromagnetic radiation from longest wavelength (lowest frequency) to shortest wavelength (highest frequency):
Radio waves > Infrared > Visible light > Ultraviolet > X-rays > Gamma rays.
Use this order to determine that radio waves have the longest wavelength and gamma rays have the highest frequency.
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