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The correct match between the entries in column I and column II are : Column-I Radiation (a) Microwave (b) Gamma rays (c) A.M. radio waves (d) X-rays Column-II Wavelength (i) 100 m (ii) 10^-15 m (iii) 10^-10 m (iv) 10^-3 m

1. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
2. (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
3. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
4. (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)

Correct answer: (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

Solution

The correct option matches each type of radiation with its corresponding wavelength: microwaves have longer wavelengths around 100 m, gamma rays have very short wavelengths around 10^-15 m, AM radio waves are around 10^-3 m, and X-rays are about 10^-10 m, accurately reflecting their positions in the electromagnetic spectrum.

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