Single Choice

A. wavelength of microwave is greater than that of ultraviolet rays. B. The wave length of infrared rays is lesser than that of ultraviolet rays. C. wavelength of microwave is lesser than that of ultraviolet rays D. Gamma rays has shortest wavelength in the electromagnetic spectrum. Choose the correct option from the given options.

AA and B are true
BB and C are true
CC and D are true
DA and D are true
Correct Answer

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 Ultraviolter 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 Ultraviolet rays. So, options $$B$$ and $$C$$ are not true.
Option $$(D)$$ is correct.

SIMILAR QUESTIONS

Electromagnetic Waves

Which of the following electromagnetic waves is used in medicine to destroy cancer cell?

Electromagnetic Waves

If $$v_{g}, v_{x}$$, and $$v_{m}$$ are speeds of gamma rays, $$X$$ rays, and microwaves respectively in vacuum, then:

Electromagnetic Waves

Name the rays or waves of highest frequency.

Electromagnetic Waves

Name the rays or waves produced by the changes in the nucleus of an atom.

Electromagnetic Waves

The most energetic electromagnetic radiations are:

Electromagnetic Waves

What is the range of the wavelength of the following electromagnetic wave : Gamma rays ?

Electromagnetic Waves

Give one use of gamma rays .

Electromagnetic Waves

Which part of electromagnetic spectrum has largest penetrating power?

Electromagnetic Waves

Identify the type of waves which are produced by the following way and write one application for each: (i) Radioactive decay of the nucleus (ii) Rapid acceleration and decelerations of electrons in aerials (iii) Bombarding a metal target by high energy electrons.

Electromagnetic Waves

Which of the following has the least wavelength? Gamma rays, blue light, infrared radiation and ultraviolet, radiation.

Contact Details