A narrow light beam is made up of two waves with different wavelengths. It falls on a sharp edge. What effect will be observed beyond the sharp edge?
- ABoth waves continue along the same straight line as before.
- BBoth waves bend sharply and continue along a new straight line.
- CThe wave of longer wavelength bends round the sharp edge more than the wave of shorter wavelength.
- DThe wave of shorter wavelength bends round the sharp edge more than the wave of longer wavelength.