Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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# 50% of the X-rays Coming from a Coolidge Tube Are Able to Pass Through a 0.1 Mm Thick Aluminium Foil. If the Potential Difference Between the Target and the Filament is Increased, - Physics

ConceptElectromagnetic Spectrum

#### Question

50% of the X-rays coming from a Coolidge tube are able to pass through a 0.1 mm thick aluminium foil. If the potential difference between the target and the filament is increased, the fraction of the X-rays passing through the same foil will be

• 0%

• < 50%

• 50 %

• > 50%

#### Solution

> 50%

The penetrating power of X-rays varies directly with the accelerating potential of the electrons (V) or the energy of the X-rays. So, if the potential difference between the target and the filament is increased, the fraction of the X-rays passing through the foil will also increase.

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Solution 50% of the X-rays Coming from a Coolidge Tube Are Able to Pass Through a 0.1 Mm Thick Aluminium Foil. If the Potential Difference Between the Target and the Filament is Increased, Concept: Electromagnetic Spectrum.
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