Discussion
The correct order of different solar radiations in terms of their wavelength increase ...................
Answer: C
The correct order is X-rays \(\lt\) UV \(\lt\) IR \(\lt\) Microwave.
In the electromagnetic spectrum wavelength increases from X-rays (about 0.01 to 10 nm) through ultraviolet (10 to 400 nm), visible light, infrared (700 nm to 1 mm) and then microwaves (1 mm to 1 m).
Option A lists the order backwards, and options B and D put X-rays and ultraviolet, or microwave and infrared, the wrong way round.
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