Consider the following statements about visible light, UV light and X-rays :
- 1. The wavelength of visible light is more than that of X-rays.
- 2. The energy of X-ray photons is higher than that of UV light photons.
- 3. The energy of UV light photons is less than that of visible light photons.
Which of the statements given above is/are correct?
[amp_mcq option1=”1, 2 and 3″ option2=”1 and 2 only” option3=”2 and 3 only” option4=”1 only” correct=”option2″]
This question was previously asked in
UPSC NDA-2 – 2018
2. The energy of X-ray photons is higher than that of UV light photons: Correct, as X-rays are to the higher frequency/energy side of UV light in the spectrum.
3. The energy of UV light photons is less than that of visible light photons: Incorrect, as UV light is to the higher frequency/energy side of visible light. UV photons have higher energy than visible light photons.