Moderate

The wavelength associated with electrons is equal to that of:

Correct answer: B. X rays

  • A. Visible spectrum
  • B. X rays
  • C. Radio waves
  • D. Infrared waves

Explanation

We know that X-rays are produced due to transition of electron from higher shell yo lower shell , producing continuous and characteristic X rays So the photon produced by electron is actually X ray , so wavelength produced is actually associated with X rays.

Last updated

About Quantum Theory and Radiation

Quantum theory treats electromagnetic radiation as packets of energy called photons, with energy proportional to frequency through E equals hf. The topic covers Planck's hypothesis, photon momentum, the photoelectric effect, threshold frequency, work function and wave particle duality, distinguishing quantised energy exchange from classical continuous radiation.

Practise Dawn of Modern Physics

739 free Dawn of Modern Physics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Physics questions like this

Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions