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When a ray of light travels from one medium to another it ‘bends’. This phenomenon is referred to as refraction. The atmosphere of the earth is made of different layers. It is affected by winds, varying temperatures and different densities as well. When light from a distant source (a star) passes through our turbulent (moving air) atmosphere, it undergoes refraction many times. When we finally perceive this light from a star, it appears to be twinkling.
In which state was the Agni-4 Ballistic Missile successfully test-fired?
Who has been appointed as the new Revenue Secretary in the Ministry of Finance?
Ram Nath Kovind Committee' which was in discussion recently is related to?
What is the main component of natural gas?
According to the World Happiness Report, 2024, where is India ranked among 146 countries?
Identify the correct statements about Indian Railways:
1. Indian Railways is the world’s largest railway system under single management.
