August 14, 2021

When did CV Raman born?

When did CV Raman born?


Why is the sky blue Raman?

Through various experiments Raman concluded that any liquid contains minute particles and because of them blue colour is scattered. Though violet has the shortest wave length, the sky looks blue, not violet. This is because, the rays penetrating through the atmosphere and reaching Earth contain mostly blue colour.

Why the sea is blue?

The ocean is blue because water absorbs colors in the red part of the light spectrum. Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see. The ocean may also take on green, red, or other hues as light bounces off of floating sediments and particles in the water.

Who started science day?

Sukumar Chandra Sirkar (1898-1983) is one such unsung student of Raman. In 1928, when Raman made the discovery in his laboratory at the Indian Association for the Cultivation of Science (IACS) in Kolkata, he had a fairly large number of associates and researchers working with him.

Why are clouds white?

Clouds are white because light from the Sun is white. As light passes through a cloud, it interacts with the water droplets, which are much bigger than the atmospheric particles that exist in the sky. But in a cloud, sunlight is scattered by much larger water droplets.

Why do clouds turn GREY?

When clouds are thin, they let a large portion of the light through and appear white. But like any objects that transmit light, the thicker they are, the less light makes it through. As their thickness increases, the bottoms of clouds look darker but still scatter all colors. We perceive this as gray.

Why do clouds look fluffy?

“When we see grey clouds, they have a large concentration of water droplets,” says Associate Professor Lane. “Although most clouds look light and fluffy, they are in fact highly turbulent with very strong air currents within them and an enormous mass of suspended water,” he says.

Why do clouds appear black when it rains?

When it’s about to rain, clouds darken because the water vapor is clumping together into raindrops, leaving larger spaces between drops of water. Less light is reflected. The rain cloud appears black or gray. Clouds form when air becomes saturated, or filled, with water vapor.

What do black clouds symbolize?

Originally Answered: What do black clouds indicate? It indicates that the cloud has enough moisture to absorb all the light passing through them from above or that sunlight is blocked by the sun setting over the horizon.

What do black clouds mean?

A normal day without rain should have a sky with mostly white or light gray clouds. But dark gray or blackish clouds before sunset suggests that the clouds are getting too heavy with droplets and could soon start to rain.