Question
Arrange the following electromagnetic radiations per quantum in the order of increasing energy:
A: Blue light
B: Yellow light
C: X-ray
D: Radiowave
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D, B, A, C
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A, B, D, C
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C, A, B, D
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B, A, D, C
Solution
A.
D, B, A, C
As, we know energy liberated, E = hc/λ
i.e 
So, lesser the wavelength greater will be energy liberated by electromagnetic radiations per quantum.
As, order of wavelength is given by
X- rays, VIBGYOR, Radio waves
therefore, the order of electromagnetic radiations per quantum.
D<B<A<C
