Question Text
Question 3 :
Why are red coloured lights are used in traffic signals to stop the vehicles?
Question 5 :
During dispersion through prism, red light travels fastest and violet travels slowest of all the seven colours. As a result:
Question 6 :
Fine beam of light entering through a small hole in a dark room illuminates the particles in its path. Identify the effect associated with this process.<br/>
Question 7 :
In context of scatteringFine particles : ____ wavelength : : large particles : _____ wavelength
Question 8 :
The sun appears red at the time of sun-rise and sun-set. This is because:
Question 10 :
As the thickness of the atmosphere increases colour of scattered light is found in ________order.
