Sound WavesHard
Question
Which of the following fuctions represects a simple harmonic oscillation ?
Options
A.sinωt - cosωt
B.sin2ωt
C.sin2 ωt + cos 2 ωt
D.sin2 ωt - cos 2 ωt
Solution
sin ωt - cos ωt = √2 
= √2 sin (ωt - π/4)
which represents simple harmonic motion.
= √2 sin (ωt - π/4)
which represents simple harmonic motion.
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