A progressive wave equation is represented by y = a sin(150 πt - \(\frac{πx}{4}\)). if the phase difference of a progressive wave is 45°, the value of x in the equation is
The frequency of the wave in the diagram above is
Which of the following is used for the correction of short sightedness?
Dispersion occurs when white light passes through a glass prism because of the?
When a positively charged rod is brought nearer the cap of a positively charged electroscope, the leaves divergence will?
