Radiation with wavelength longer than red light:
Correct answer: B. Infrared radiation
- A. Ultraviolet rays
- B. Infrared radiation
- C. X-rays
- D. Visible radiations
Explanation
The wavelength of infrared radiation is greater than visible light. So, the radiation with wavelength greater than red light is infrared.
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About Atomic Spectra
Atoms emit or absorb light at specific wavelengths because electrons occupy quantized energy levels and change levels by absorbing or releasing photons. The topic covers emission and absorption spectra, spectral series, hydrogen’s line spectrum, energy-level transitions, and the relation between wavelength, frequency and photon energy.
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