JEE MAIN - Physics (2019 - 12th April Morning Slot - No. 25)
A progressive wave travelling along the positive x-direction is represented by y(x,t) = Asin(kx – $$\omega $$t + $$\phi $$). Its
snapshot at t = 0 is given in the figure.
_12th_April_Morning_Slot_en_25_1.png)
For this wave, the phase $$\phi $$ is :
For this wave, the phase $$\phi $$ is :
$${\pi \over 2}$$
$$\pi $$
0
$$ - {\pi \over 2}$$
คำอธิบาย
y = A sin (kx – wt + $$\varphi $$)
at x = 0, t = 0 and slope is negative
$$ \Rightarrow \varphi = \pi $$
at x = 0, t = 0 and slope is negative
$$ \Rightarrow \varphi = \pi $$