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

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

Assertion :   Intensity of X-rays can be controlled by adjusting the filament current and voltage.

Reason     : The intensity of X-rays does not depend on number of X-ray photons emitted per second from the target.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c) If assertion is true but reason is false.

(d) If the assertion and reason both are false.
✓

Answer

(c) If assertion is true but reason is false.

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