Discussion
The blue colour of the sky is due to
Answer: C
The sky is blue because of the scattering of light.
Sunlight is scattered by the molecules of the air, and this Rayleigh scattering varies inversely as the fourth power of the wavelength. Blue light, with its short wavelength, is scattered far more than red, so blue light reaches the eye from every part of the sky.
Reflection and refraction do not separate colours across the sky in this way; refraction is what produces a rainbow inside raindrops. Polarisation is a property that scattered skylight does show, but it is not the cause of its colour.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development