A) \[{{v}_{g,}}>{{v}_{m}}>{{v}_{x}}\]
B) \[{{v}_{g}}>{{v}_{x}}>{{v}_{m}}\]
C) \[{{v}_{g}}={{v}_{x}}={{v}_{m}}\]
D) none of these
Correct Answer: C
Solution :
Electromagnetic radiation is a propagating wave in space with electric and magnetic components. Gamma rays, \[X-\]rays and microwaves respectively are electromagnetic waves. They travel with the speed of light. Hence,\[{{v}_{g}}-{{v}_{x}}={{v}_{m}}\]
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