Which one of the following has greater frequency?
Correct answer: D. Gamma rays
- A. Ultra-violet rays
- B. Visible light
- C. Infra-red radiation
- D. Gamma rays
Explanation
Gamma rays have the highest frequency of all the electromagnetic waves. This means they also have the greatest energy, as frequency and energy are directly proportional. In comparison, infra-red radiation has the lowest frequency, followed by visible light, and then ultra-violet rays. Gamma rays, being at the extreme high-frequency end of the spectrum, surpass all these in frequency.
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Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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