Light waves travel fastest in
A) water.
B) glass.
C) a vacuum.
D) air.
E) none of these; they travel at the same speed in all these media.
Correct Answer:
Verified
Q20: For a longitudinal mechanical wave, the particle
Q21: Electromagnetic waves are
A) longitudinal.
B) reverse.
C) transverse.
D) a
Q22: A sound with a frequency of 25
Q23: A radar pulse returns 9.0 × 10-4
Q24: An increase of 20 dB increases the
Q26: The region of the electromagnetic spectrum with
Q27: Which of the following sound frequencies lie(s)
Q28: Which of the following sound frequencies lie(s)
Q29: The region of the electromagnetic spectrum with
Q30: Which of the following electromagnetic radiations has
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents