UPSC 2017 CDS I GK Paper

© examsiri.com

Question : 30 of 120

Marks: +1, -0

A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct?

[2017 CDS-I]

The wavelength of X-ray photon is less than the wavelength of visible radiation photon.
Both the photons have different energies.
The speeds of both the photons in vacuum are different.
The frequency of X-ray photon is higher than the frequency of visible radiation photon.

Go to Question:

Prev Question

Next Question