Science Quiz from 166 to 170
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166. Which electromagnetic wave has the longest wavelength?
(A) Gamma rays
(B) X-rays
(C) Microwaves
(D) Radio waves
167. Which electromagnetic wave has the shortest wavelength?
(A) Gamma rays
(B) X-rays
(C) Microwaves
(D) Radio waves
168. All electromagnetic waves have the same
(A) Frequency
(B) Amplitude
(C) Wavelength in vacuum
(D) Speed in vacuum
169. The reflection of sound is called
(A) Frequency
(B) Vibration
(C) Echo
(D) Wave
170. An instrument used to measure electric current is called
(A) Ammeter
(B) Barometer
(C) Galvanometer
(D) Manometer
ANSWERS: SCIENCE QUIZ
166. (D) Radio waves
167. (A) Gamma rays
168. (D) Speed in vacuum
169. (C) Echo
170. (A) Ammeter