General Studies I
Each of the following 3 questions consists of two statemetns, one labelled as ‘Assertion (A)’ and the other as ‘Reason (R)’. You are to examine these two statements carefully and select the answers to these items using the code given below.
Reason (R): The wavelength of red light is more than that of green light Code:
Assertion (A): In the visible spectrum of light, red light is more energetic than green light.
A both A and R are individually true and R is the correct explanation of A B Both A and R are individually true but R is not the correct explanation of A C A is true but R is false D A is false but R is true
Reason (R): The wavelength of red light is more than that of green light
Short wavelength = high frequency = high energy
Long wavelength = low frequency = low energy
The familiar colors of the rainbow in the spectrum include all those colors that can be produced by visible light of a single wavelength only, the pure spectral or monochromatic colors.
Although the spectrum is continuous and therefore there are no clear boundaries between one color and the next, the ranges may be used as an approximation.
violet 380-450 nm
blue 450-495 nm
green 495-570 nm
yellow 570-590 nm
orange 590-620 nm
red 620-750 nm