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 p

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

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

However, its path becomes visible through a colloidal solution where the size of the particles is relatively larger. The topic further discusses the Tyndall Effect – why the colo

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 whil

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 q

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

Why do stars twinkle but not planets? Planets are at a lesser distance from us as compared to stars. Due to this, they appear much more prominent, and the light seems to come from

Why do we see a rainbow in the sky only after rainfall in Chapter 11 of NCERT Exemplar Solutions for Class 10 Science? A Rainbow is caused by the dispersion of sunlight by tiny wat

Why Does the Sunlight Appear Red, Orange or Yellow? When the sun rays enter the earth, they get distorted by the earth’s atmosphere including air molecules, dust and smoke. We kn