The figure represents the observed intensity of `X` - rays emitted by an `X` - ray tube as a function of wavelength . The sharp peaks `A` and `B` denote

Options

A. Band spectrum
B. Continuous spectrum
C. Characteristic radiations
D. White radiations

Answer

C

Explanation

In `X` - ray spectra , depending on the accelerating voltage and the target element , we may find sharp peaks super imposed on continuous spectrum. These are at different wavelengths for different elements . They form characteristic `X` - ray spectrum.