A. Wavelength of microwaves is greater than that of ultraviolet rays.
B. The wavelength of infrared rays is lesser than that of ultraviolet rays.
C. The wavelength of microwaves is lesser than that of infrared rays.
D. Gamma ray has shortest wavelength in the electromagnetic spectrum
Choose the correct option.

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A and B are true

B and C are true

C and D are true

A and D are true

answer is D.

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Detailed Solution

The wavelength and the frequency of the Electromagnetic waves are inversely proportional to each other.

A. The wavelength of Microwave is greater than UV rays.
The frequency of the microwave is less than that of the Ultraviolet rays, the wavelength of the Microwaves will be longer than the Ultraviolet rays.

D. Gamma rays have the shortest wavelength in the EM spectrum.
The frequency of the gamma rays is the highest in the electromagnetic spectrum. So, it will have the shortest wavelength.

The wavelength of the infrared is higher than the Ultraviolet rays and also the wavelength of the microwave is higher than infrared rays. So, statements B and C are not true.

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