Constructive and destructive interference

State the Conditions to Get Constructive and Destructive Interference of Light. - Physics | Shaalaa.com

Bismuth123 by Tobias on Instagram: "A Bismuth crystal is a rare moment where science decides to show off. As molten bismuth cools, it doesn’t form a dull metal chunk, it grows stepped geometric “hopper” shapes, like tiny metallic temples spiraling inward. Its vivid rainbow colors aren’t painted but created naturally by light interference on a thin oxide layer—just like the colors in soap bubbles or butterfly wings. In the end, a bismuth crystal is physics wearing a tuxedo: proof that even the la