CBSE Class 10 Physics The Human Eye and The Colourful World
When light travels from mediums having different optical densities, ___________ of light occurs.
Cool air is a/an __________ medium.
- why does the sun appear reddish early in the morning? will this phenomenon be observed by an astronaut on the moon ? give reason to justify your answer
- twinking of stars
- If the stars too are as near as planets then they donot twinkle? And if the planets are as far as stars then can they twinkle?
- Explain twinkling of stars and draw diagram.
- Why do stars appears twinkling
- Does refraction take place in the atmosphere ? Give reason.
- Provide an example to show the atmospheric refraction.
- Atmospheric refraction results into some atmospheric phenomena. State some examples.
- What is the time difference by which we see the sunset ?
- Time from sunrise to sunset is lengthened by how many minutes?
Queries asked on Sunday & after 7 pm from Monday to Saturday will be answered after 12 pm the next working day.