Physics Multiple Choice Questions – MCQ Quiz

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Science → MCQs → Physics → Physics multiple choice questions and Answers from 21 to 25. The following Physics multiple choice questions (MCQ) are from basic concepts in physics, particularly electromagnetic spectrum. Find answers to the Physics MCQ after the 25th question.

PHYSICS MULTIPLE CHOICE QUESTIONS (MCQs)

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21. Which radiation has the lowest frequency in the electromagnetic spectrum?
(A) X-rays
(B) Gamma rays
(C) Ultraviolet rays
(D) Radio rays

22. Which rays are useful in cancer treatment?
(A) X-rays
(B) Gamma rays
(C) Ultraviolet rays
(D) Radio rays

23. The speed of sound will be maximum if passing through
(A) vacuum
(B) air
(C) water
(D) iron

24. The wire used to make the filament of a light bulb is made of
(A) nichrome
(B) chromel
(C) tungsten
(D) fire-clay

25. The wire used to make heating elements in electric kettles and irons are made of
(A) nichrome
(B) chromel
(C) tungsten
(D) fire-clay

ANSWERS: PHYSICS MULTIPLE CHOICE QUESTIONS
21. (D) Radio rays
22. (B) Gamma rays
23. (D) iron
24. (C) tungsten
25. (A) nichrome

Physics Multiple Choice Questions – MCQ Quiz