United States

In this segment, we will learn about the electromagnetic spectrum. We will discuss electromagnetic waves, the wave equations, wavelength, frequency, and polarization.

NISH 2021

Geometric Optics Segment 1: Electromagnetic Spectrum

## Dr. Nishikant (Nish) Sonwalkar: Academician, Scientist, Musician

![](https://assets.underline.io/uploads/markdown_image/1/image/0f9b63a0b3deba4a355d98e2c87af68a.png)

Dr. Sonwalkar is regarded as a leading expert in the application of computers in education. He has extensive research and development experience in hypermedia authoring, mobile learning, adaptive learning, and brain-based synaptic learning, advanced scientific visualization, database management systems, and computer simulation.

After receiving doctoral degree from MIT in the area of Molecular Dynamics of Nano-interfaces, he joined MIT as faculty in Mechanical Engineering, but his passion for technology enabled education led him become the founding director of Hypermedia Teaching Facility (Hypermedia Lab) at MIT and later he was appointed as the Principal Educational Architect of MIT.

<iframe width="560" height="315" src="https://www.youtube.com/embed/dgGdFmr9kgs" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

lecture

Geometric Optics Segment 2: Interference of Light

Geometric Optics Segment 3: Diffraction of Light

Geometric Optics Segment 4: Applications of Diffraction Gratings

Geometric Optics Segment 5: Dispersion of Light

Geometric Optics Segment 6: Thin Films and Optical Coating

In this segment, we will discuss the birth of modern physics; Planck's theory, which is used to explain blackbody radiation; and the photoelectric effect, which Albert Einstein explained in 1905.

Modern Physics Segment 1: Modern Physics

Modern Physics Segment 2: Particles are Waves

Modern Physics Segment 3: Electron Levels

Modern Physics Segment 4: Relativity

Modern Physics Segment 5: Nuclear Physics

https://d3smihljt9218e.cloudfront.net/transcript/31574/subtitle/25cb8a7f486ca3d4488821499d36e851.vtt

English (automatic)

Geometric Optics Segment 1: Electromagnetic Spectrum

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Geometric Optics Segment 2: Interference of Light

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Geometric Optics Segment 5: Dispersion of Light

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