Arrange the following electromagnetic waves in the increasing order of their energy.
(A) Ultraviolet rays
(B) Infrared rays
(C) Microwaves
(D) X-rays
(E) Gamma rays
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (C), (B), (A), (D), (E)
Energy of electromagnetic waves is proportional to their frequency: $E = h \nu$
Increasing order of frequency (and hence energy):
Microwaves < Infrared < Ultraviolet < X-rays < Gamma rays
Corresponding to given options:
(C) < (B) < (A) < (D) < (E)
Answer: (C), (B), (A), (D), (E)