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QPages 393-394: Q13: HC Verma: Concepts of Physics - Volume 2 X-Rays Pages 393-394: Q13 Solution: X-ray from a Coolidge tube is incident on a thin aluminium…

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often treat $I_0$ as a constant maximum transmitted intensity, forgetting it is the transmitted value for the initial filament current; when the filament current (and thus incident X‑ray intensity) increases, the same attenuation factor yields a larger transmitted intensity, so the result can be $>I_0$.

X-ray from a Coolidge tube is incident on a thin aluminium foil. The intensity of the X-ray transmitted by the foil is found to be I0I_0. The heating current is increased to increase the temperature of the filament. The intensity of the X-ray transmitted by the foil will be

Multiple Choice Options

  • A zero
  • B <I0< I_0
  • C I0I_0
  • D >I0> I_0

Step-by-Step Verified Solution

**Answer:** (d) > I_0. **Step-by-Step Explanation:** Increasing the filament current increases the intensity of X-rays, so the transmitted intensity increases.

All Questions in this Chapter

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