The range of wavelengths of the infrared waves in an electromagnetic spectrum is $10^{-3}$ m to $10^{-6}$ m. The wavelength of the radiation is

longer than $10^{-6} m$ .

shorter than $10^{-6} m$ .

shorter than $10^{3} m$ .

longer than $10^{3} m$ .

Correct answer is A

The range of wavelengths for infrared waves is given as $10^{-3}$ m to $10^{-6}$ m. This means that the wavelength of the radiation is longer than $10^{-6} m$ but shorter than \{10^{-3} m\). Therefore, the only correct option is that the wavelength is longer than $10^{-6} m$ .

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