what is light

Asked by shubhankarmishar7 | 15th May, 2021, 08:58: PM

Expert Answer:

Light is electromagnetic radiation in the wavelength range 400 nm to 700 nm . [ nm stands for nanometer , 10-9 m ].
 
When electromagnetic radiation is in the above mentioned wavelength range , our ey can detect this radiation .
 
We call this electromagnetic radiation in the wavelength range 400 nm to 700 nm as light.
 
Colour of light depends on wavelength as given below in the table
 
 Colour  Wavelength ( nm )
 Violet  400
 Blue  450
 Cyan  500
 Green  550
 Yellow  580
 Orange  600
Red 650 - 700

Answered by Thiyagarajan K | 15th May, 2021, 09:50: PM