Question

When long-wavelength light is seen in the interference colors of a soap bubble, the wavelength being cancelled is relatively:___.

Answer 1

When long-wavelength light is seen in the interference colors of a soap bubble, the wavelength being cancelled is relatively short

For constructive interference, the difference in wavelengths will be an integer number of whole wavelengths. For destructive interference it will be an integer number of whole wavelengths plus a half wavelength. Think of the point exactly between the two slits.

What is interference ?

In physics, interference refers to the combined result of two or more wave trains travelling along intersecting or converging trajectories. The result is the result of adding the individual wave amplitudes at each place that is influenced by multiple waves.

• Constructive interference and destructive interference are the two types of interference. Additionally, when the wave amplitudes reinforce one another, the waves' amplitudes grow, which results in constructive interference.

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