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Electron, Photon, Photoelectric Effect and X-Rays — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectron, Photon, Photoelectric Effect and X-Rays1 Mark
Question

When the accelerating voltage applied on the electrons increased beyond a critical value

(a) Only the intensity of the various wavelengths is increased
(b) Only the wavelength of characteristic relation is affected
(c) The spectrum of white radiation is unaffected

(d) The intensities of characteristic lines relative to the white spectrum are increased but there is no change in their wavelength
✓

Answer

(d) The intensities of characteristic lines relative to the white spectrum are increased but there is no change in their wavelength

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