When electrons collide with heavy metals than ___________ are produced?
Correct answer: C. X-rays
- A. Beta-rays
- B. Alpha-rays
- C. X-rays
- D. Gamma-rays
Explanation
When high-speed electrons strike a heavy-metal target, they are suddenly decelerated and emit X-rays, including bremsstrahlung and characteristic X-rays. Alpha, beta and gamma rays are nuclear radiations and are not produced by this electron-target process. Students may choose d because gamma rays are also penetrating electromagnetic radiation, but their origin is nuclear transitions.
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About Planck's Quantum Theory
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