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Grade 12Modern Physics

The X-ray beam coming from an x-ray tube

(a) is monochromatic

(b) has all wavelengths smaller than a certain maximum wavelength

(c) has all wavelengths greater than a certain minimum wavelength

(d) has all wavelengths lying between a minimum and a maximum wavelength

The ans is (c)

But how is that possible ???

I know that the ans is not (a)..

And i think the ans is (d) but the ans is (c)..

Help me in this problem pls...

Aieee is approaching fast !!!

Plsss help i'll approve !!

Profile image of Geoffrey Richards
15 Years agoGrade 12
Answers icon

1 Answer

Profile image of SAGAR SINGH - IIT DELHI
15 Years ago

Dear student,

The correct option is c)

X-rays are a form of invisible, high-frequency electromagnetic radiation. The wavelength of x-rays is between 10 and 0.01 nanometers, corresponding to a frequency of 30 PHz to 30 EHz. X-rays are very small and energetic. They are produced by accelerating electrons at a metal target. X-rays are used in various medical applications, especially for imaging.

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