NTA Abhyas JEE Main2020PhysicsOscillationsPractice
The displacement ( x ) is plotted with time ( t ) for a particle executing SHM as shown below. The correct equation of SHM is
Options
- Ax = 4 sin π t 6 + π 6
- Bx = 4 sin π t 6 - π 6
- Cx = 2 sin 2 π 6 + π 6
- Dx = 2 sin π t 6 - π 6
Correct answer
B. x = 4 sin π t 6 - π 6
Step-by-step solution
x = 4 sin ( ω t + ϕ ) ω = 2 π T = 2 π 12 = π 6 x = 4 sin π t 6 + ϕ - 2 = 4 sin ϕ - 1 2 = sin ϕ ϕ = - π 6 x = 4 sin π t 6 - π 6