Two waves on a string are described by $y_1(x,t) = A\cos(kx - \omega t)$ and $y_2(x,t) = A\cos(kx + \omega t + \phi)$. For what value of $\phi$ will the resultant wave have an amplitude of $A$?

If an electromagnetic wave is traveling in free space, which of the following properties does it NOT possess?

A wave has a frequency of 50 Hz and a wavelength of 2 m. What is its speed?

Which of these is an INCORRECT statement about electromagnetic waves in free space?

The amplitude of electric field in a parallel beam of light of intensity $4{\rm{\;W}}{{\rm{m}}^{ - 2}}$ is

Electromagnetic waves traveling in free space exhibit all of the following properties EXCEPT:

An electromagnetic wave is propagating through vacuum. Which statement is FALSE regarding its properties?

The equation of a wave is given by $y = 5 \sin(\pi(0.04t - 2x))$, where $x$ and $y$ are in cm and $t$ is in seconds. What is the frequency of the wave?

The equation of a transverse wave on a string is $y = A\sin(\omega t - kx)$. The maximum transverse speed of a particle on the string is related to the wave speed $v$ by:

In the wave equation $y = A \sin(\omega t - kx)$, what does $\omega$ represent?

A standing wave on a string fixed at both ends is described by $y(x,t) = 0.04\sin(2\pi x)\cos(100\pi t)$ (in SI units). The fundamental frequency of the string is: