Light from an unknown element is focused through a diffraction grating and an in
ID: 777968 • Letter: L
Question
Light from an unknown element is focused through a diffraction grating and an interference pattern containing the colours green, red, and violet appears on the screen. The order of the colours that are closest to the central maximum is:
A) green, violet, red
B) red, green, violet
C) violet, green, red
D) green, red, violet
Explanation / Answer
the position of the colours from the central maximum is based on the wavelength. the lesser the wavelength the more closer it is to the central maximum. so order of wavelength is Violet, Green, Red.
Hence option C is correct. Violet, Green, Red.