Wave Motion 5 Question 18
18. In a wave motion $y=a \sin (k x-\omega t), y$ can represent
(a) electric field
(b) magnetic field $(1999,3 M)$
(c) displacement
(d) pressure
(1999, 3M)
Show Answer
Solution:
- In case of sound wave, $y$ can represent pressure and displacement, while in case of an electromagnetic wave it represents electric and magnetic fields.
NOTE In general, $y$ is any general physical quantity which is made to oscillate at one place and these oscillations are propagated to other places also.
