1) Electrons being shot one at the time 2) Photons being shot one at the time. 3) A laser (contains many photons) 4) A small molecule (~60 atoms) being shot one at the time 5) A big molecule (~800 atoms) being shot one at the time All of the above 1), 2), 3) and 4)
Stellar evolution
We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.
Red Shift
It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.
![**Double-Slit Experiment: Understanding Particle Wave Duality**
**Question**:
Which of the following could, in principle, create an interference pattern in a double-slit experiment? (The setups would be different in each case)
1. Electrons being shot one at the time
2. Photons being shot one at the time.
3. A laser (contains many photons)
4. A small molecule (~60 atoms) being shot one at the time
5. A big molecule (~800 atoms) being shot one at the time
**Options**:
- ☐ All of the above
- ☐ 1), 2), 3) and 4)
- ☐ Only 3)
- ☐ 1), 2) and 3)
**Submission**:
Click the **Submit** button to record your answer, or select **Request Answer** for further assistance.
---
In the double-slit experiment, different types of particles and waves are used to explore the principle of superposition and wave-particle duality. Below is a detailed explanation of each condition:
1. **Electrons being shot one at the time**: Electrons, though particles, exhibit wave-like properties, creating an interference pattern when passing through double slits one at a time.
2. **Photons being shot one at the time**: Individual photons also demonstrate their wave nature by creating an interference pattern in a double-slit setup.
3. **A laser (contains many photons)**: A coherent source of light, such as a laser, produces an interference pattern due to the constructive and destructive interference of the many photons.
4. **A small molecule (~60 atoms) being shot one at the time**: Even relatively small molecules, like those composed of around 60 atoms, can display wave-like behavior and form an interference pattern.
5. **A big molecule (~800 atoms) being shot one at the time**: Larger molecules, approximating 800 atoms, under the right conditions, can also produce interference patterns, demonstrating wave-particle duality on a macroscopic scale.
Understanding these concepts is integral to the study of quantum mechanics and the fundamental nature of reality.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc30050ec-6359-4920-ab66-43f106f38c33%2F5cac350b-f2f1-4f3d-9ab5-b122318b4b43%2F8lk3s6_processed.png&w=3840&q=75)
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