Diffraction Lab: (1/2 page) 1. Why do elements produce different spectrums of li

Question

Diffraction Lab: (1/2 page) 1. Why do elements produce different spectrums of light? 2. Why do we need a collimator after the lamp? 3. If I have 3 electron excitation levels (including the ground state for a total of 4 orbitals), how many bands of light would I see? Physics topic: Spectrometry (1/2 page) Research Spectrometry and share what you learned. Make sure to address the following discussion guidelines: What are some current uses for spectrometers? Look into how simulated emission in lasers works. What is the gas that is used in most common laser pointers?

Explanation / Answer

1. Elements produce different spectrum of light because each element has different energy level and they excite to various levels. Due to this difference every element has their own spectrum of light.

2. Collimator is a device which narrows the beam of light or wave. We use collimator after lamp so that the light from lamp is narrowed and focused wherever it is desired.

3. Whenever the electron comes from higher energy level to lower one it emits radiation of a defined frequency. So if there are total three excitation level then coming from each higher level to lower one radiation will be seen. So there will be total three light bands.

4. Spectrometer is used for measuring the properties of light such as its frequency, wavelength or energy.

5. Neon is the most common gad used in laser pointers

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