Which of the following properies by cathode ray?

Options

A. Dual nature
B. Travel with speed of light
C. Have negative charge
D. Possess magnetic effect

Answer

To determine which properties are exhibited by cathode rays, we can analyze the characteristics of cathode rays, which are essentially streams of electrons. Here’s a step-by-step breakdown of the properties:

### Step 1: Understanding Cathode Rays
- Cathode rays are streams of electrons emitted from the cathode in a vacuum tube.

**Hint:** Remember that cathode rays are composed of electrons, which are fundamental particles with specific properties.

### Step 2: Dual Nature of Electrons
- Electrons exhibit both wave-like and particle-like behavior, which is referred to as their dual nature.

**Hint:** Consider how light behaves; electrons can also show similar properties in certain conditions.

### Step 3: Speed of Electrons
- Electrons in cathode rays travel at a significant speed, but they do not travel at the speed of light. The speed of light is approximately \(3 \times 10^8\) meters per second, and while electrons are fast, they do not reach this speed.

**Hint:** Think about the limitations of particles with mass compared to massless particles like photons.

### Step 4: Charge of Electrons
- Electrons carry a negative charge. This is a fundamental property of electrons and is crucial in understanding their behavior in electric and magnetic fields.

**Hint:** Recall that the charge of an electron is negative, which influences how it interacts with other charged particles.

### Step 5: Magnetic Effect Due to Spin
- Electrons possess a property called spin, which gives rise to a magnetic moment. This means that electrons can create a magnetic effect.

**Hint:** Consider how spinning objects can create magnetic fields, similar to how electrons behave.

### Conclusion
Based on the analysis:
1. Cathode rays exhibit dual nature (correct).
2. They do not travel at the speed of light (incorrect).
3. They have a negative charge (correct).
4. They pose a magnetic effect due to spin (correct).

Thus, the properties exhibited by cathode rays include dual nature, negative charge, and the ability to create a magnetic effect due to their spin.

### Final Answer
The properties exhibited by cathode rays are:
- Dual nature (wave and particle)
- Negative charge
- Magnetic effect due to spin