Scattering of light - BYJUS Why Is the Colour of the Clear Sky Blue? And Why Are the Clouds White? Molecules with a larger size than the wavelength of light experience the scattering effect differently; the phenomenon is known as the Mie effect Due to the largeness of particles, the light appears white That is why the clouds, which are made of water droplets, are white
BYJUS Online learning Programs For K3, K10, K12, NEET, JEE, UPSC . . . Blue Sky It is normal to say that the sky appears blue in colour Have you ever thought about why it appears blue? When sunlight enters the Earth’s atmosphere, it gets scattered by the atmospheric particles In the spectrum of white light, blue is the colour that has a minimum wavelength Hence, the blue colour scatters the most and is scattered in all directions by the tiny atmospheric
BYJUS Online learning Programs For K3, K10, K12, NEET, JEE, UPSC . . . The eye loses its power of accommodation at old age The splitting of white light into its component colours is called dispersion Scattering of light causes the blue colour of sky and the reddening of the Sun at sunrise and sunset
BYJUS Online learning Programs For K3, K10, K12, NEET, JEE, UPSC . . . Why do the stars twinkle? As a star’s light penetrates the Earth’s atmosphere, every individual stream of starlight is refracted – caused to change direction, slightly – by the various temperature and density layers in Earth’s atmosphere You might think of it as the light travelling a zig-zag path to our eyes, instead of the straight path the light would travel if Earth didn’t
BYJUS Online learning Programs For K3, K10, K12, NEET, JEE, UPSC . . . The blue light due to its short wavelength is scattered more than the red light of long wavelength Thus the light directly from the sun reaching our eye is rich in red colour while the light from all the other directions reaching our eye is the scattered blue light Therefore the sky in the direction of the sun is blue
Atmospheric Optical Phenomena Definition - BYJUS Atmospheric optics is the scientific study and explanation of the unique and stunning optical effects in the sky It encompasses the principles of physics that help answer common questions like why the sky appears blue, why certain clouds are white while others appear dark, and how rainbows are formed This article will explore various atmospheric phenomena and will help gain a deeper
BYJUS Online learning Programs For K3, K10, K12, NEET, JEE, UPSC . . . Explanation: Refraction of light keeps the position of the source of light change This will make the stars sparkle 7 The clear sky appears blue because (a) blue light gets absorbed in the atmosphere (b) ultraviolet radiations are absorbed in the atmosphere (c) violet and blue lights get scattered more than lights of all other colours by the
BYJUS Online learning Programs For K3, K10, K12, NEET, JEE, UPSC . . . Why are clouds white? In a cloud, sunlight is scattered by much larger water droplets These scatter all colours almost equally meaning that the sunlight continues to remain white and so making the clouds appear white against the background of the blue sky
NCERT Solutions for Class 4 English Chapter 4 – Why? and . . . - BYJUS Chapter 4 – Why? and Alice in Wonderland Solutions answers the questions related to each and every topic discussed in this chapter Students can refer to and easily download the PDF of NCERT Class 4 English solutions for free from the links given below
BYJUS Online learning Programs For K3, K10, K12, NEET, JEE, UPSC . . . The short-wavelength blue and violet are scattered more than colours of the lower end of the spectrum which are less easily scattered Noon If the sun is overhead in the sky, the rays suffer the least amount of interference because the distance covered by them is the least at that point in time