Rankers Physics

Photoelectric Effects and deBroglie Equation: Practice Problem & Solution

36. Which of the following is not the property of cathode rays: (2002)
It produces heating effect
It does not deflect in electric field
It casts shadow
It produces fluorescence

Solution Explained:

To solve this problem, we apply the core principles of Photoelectric Effects and deBroglie Equation. Understanding the underlying formula is key to arriving at the correct answer below:

Cathode rays are streams of fast-moving electrons, which are negatively charged particles. Because they carry an electric charge, they are readily deflected by both electric and magnetic fields. Therefore, the statement that they do not deflect in an electric field is incorrect.

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