
If, ${V_g}$, $\,{V_{x\,}}\,$ and ${V_m}$ are speeds of gamma rays, X rays , and microwaves respectively in vacuum, then:
A. ${V_g}\, < \,{V_{x\,}}\, < {V_m}$
B. ${V_{g\,}}\, > {V_x} > \,{V_m}$
C. ${V_g}\, < \,{V_x}\, > {V_m}$
D. ${V_g}\, = {V_x} = \,{V_m}$
Answer
494.4k+ views
Hint: Electromagnetic waves are the waves created as a result of vibrations of the electric and magnetic fields. These waves are composed of oscillating electric field and magnetic field which are perpendicular to each other and perpendicular to the direction of propagation of the wave.
Various forms of electromagnetic radiations are as follows.
Gamma-ray, x-ray, ultraviolet, visible, infrared, microwave, and radio wave.
The peculiarity of electromagnetic radiations is that the speed of all electromagnetic waves is a constant in a vacuum. The Value of this constant is $c = 3 \times {10^8}m/s$
Complete step by step answer:
Electromagnetic waves are the waves created as a result of vibrations of the electric and magnetic fields. These waves are composed of oscillating electric fields and magnetic fields which are perpendicular to each other and perpendicular to the direction of propagation of the wave.
Electromagnetic radiation is a form of energy which takes many forms such as radio waves, microwave, x-ray, gamma-ray, etc.
In the increasing order of wavelengths, electromagnetic radiations can be arranged as:
Gamma-ray, x-ray, ultraviolet, visible, infrared, microwave, and radio wave
The peculiarity of electromagnetic radiations is that the speed of all electromagnetic waves is a constant in a vacuum. The Value of this constant is $c = 3 \times {10^8}m/s$
So, the speed of gamma-ray, x-Ray, and microwave which are part of electromagnetic radiation will be the same.
${V_g}\, = {V_x} = \,{V_m}$. Hence the answer is option D.
Note:
Only the speed of all electromagnetic radiations in a vacuum is constant. But other parameters such as frequency and wavelength of this radiation differ.
Various forms of electromagnetic radiations are as follows.
Gamma-ray, x-ray, ultraviolet, visible, infrared, microwave, and radio wave.
The peculiarity of electromagnetic radiations is that the speed of all electromagnetic waves is a constant in a vacuum. The Value of this constant is $c = 3 \times {10^8}m/s$
Complete step by step answer:
Electromagnetic waves are the waves created as a result of vibrations of the electric and magnetic fields. These waves are composed of oscillating electric fields and magnetic fields which are perpendicular to each other and perpendicular to the direction of propagation of the wave.
Electromagnetic radiation is a form of energy which takes many forms such as radio waves, microwave, x-ray, gamma-ray, etc.
In the increasing order of wavelengths, electromagnetic radiations can be arranged as:
Gamma-ray, x-ray, ultraviolet, visible, infrared, microwave, and radio wave
The peculiarity of electromagnetic radiations is that the speed of all electromagnetic waves is a constant in a vacuum. The Value of this constant is $c = 3 \times {10^8}m/s$
So, the speed of gamma-ray, x-Ray, and microwave which are part of electromagnetic radiation will be the same.
${V_g}\, = {V_x} = \,{V_m}$. Hence the answer is option D.
Note:
Only the speed of all electromagnetic radiations in a vacuum is constant. But other parameters such as frequency and wavelength of this radiation differ.
Recently Updated Pages
Express the following as a fraction and simplify a class 7 maths CBSE

The length and width of a rectangle are in ratio of class 7 maths CBSE

The ratio of the income to the expenditure of a family class 7 maths CBSE

How do you write 025 million in scientific notatio class 7 maths CBSE

How do you convert 295 meters per second to kilometers class 7 maths CBSE

Write the following in Roman numerals 25819 class 7 maths CBSE

Trending doubts
Give 10 examples of unisexual and bisexual flowers

Draw a labelled sketch of the human eye class 12 physics CBSE

Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE

Differentiate between insitu conservation and exsitu class 12 biology CBSE

What are the major means of transport Explain each class 12 social science CBSE

Franz thinks Will they make them sing in German even class 12 english CBSE
