Question

Thermal radiations are electromagnetic waves belonging to

• A. ultraviolet region
• B. visible region
• C. infrared region
• D. All of the above

Answer 1

The correct option is D All of the above

Thermal radiation comes under the wavelength range of $7.8\times {10}^{-7}\text{m}$ to $4\times {10}^{-4}\text{m}$, which falls under infrared, visible and ultraviolet region of the EM spectrum.