Fun Facts
Optics
Semiconductors
Crystals
100

This is the only planet in our solar system that rotates on its side.

What is Uranus?

100

This phenomenon occurs when light changes direction as it passes from one medium to another.

What is refraction?

100

This fundamental property of semiconductors determines their electrical conductivity and optical absorption characteristics.

What is the band gap?
100

This fundamental building block of a crystal structure repeats in three dimensions to form a crystal.

What is the unit cell?

200

A group of these animals is called a murder.

what are Crows?

200

This quantity, symbolized by n, is the ratio of the speed of light in vacuum to its speed in a given medium.

What is refractive index?

200

This compound semiconductor, known for its high electron mobility, is commonly used in LED technology and solar cells due to its efficient light emission

What is gallium arsenide?

200

This quantity, represented by integers h, k, and l, defines a set of parallel planes in a crystal lattice and is used to describe the orientation of a crystal plane or a direction in the crystal.

What are Miller Indices?

300

This body part is the only one that can repair itself without forming a scar.

what is liver?

300

This phenomenon explains why the sky appears blue during the day and red during sunset.

What is Rayleigh scattering?

300

With a bandgap of approximately 1.12 electron volts at room temperature, this element remains the dominant material in the semiconductor industry

What is silicon?

300

This fundamental theorem, originally applied to electrons, also describes the wave-like nature of phonons in periodic crystal lattices.

What is Bloch's Theorem?

400

This common fruit is actually a berry, while a strawberry is not.

what is a banana?

400

This optical property, responsible for the bending of light in a prism, depends on the wavelength of the light.

What is dispersion?

400

This wide-bandgap semiconductor has gained popularity in high-power applications, lighting and optical transceivers

What is gallium nitride?

400

This primitive cell of a Bravais lattice is constructed by drawing perpendicular bisector planes between a lattice point and all its nearest neighbors.

What is the Wigner-Seitz cell?

500

This part of your body is so unique that it can be used for identification, just like fingerprints.

What is tongue print?

500

This optical phenomenon occurs when light traveling in a denser medium strikes the boundary with a less dense medium at an angle greater than the critical angle, causing all the light to be reflected back into the denser medium.

What is total internal reflection?

500

This quantum mechanical phenomenon, crucial in semiconductor devices, occurs when an electron tunnels through a thin insulating barrier between two conducting regions, first observed by Esaki in 1957.

What is quantum tunneling?

500

This metalloid element is the only known element to crystalize in a simple-cubic lattice structure

What is Polonium