Question

In a double slit interference pattern, the first maxima for infrared light would be
(a) at the same place as the first maxima for green light
(b) closer to the centre than the first maxima for green light
(c) farther from the centre than the first maxima for green light
(d) infrared light does not produce an interference pattern

Answer 1

The first maxima for infrared light would be farther from the centre than the first maxima for the green light.

Option (c) is correct.

Explanation:

• In physics, minima and maxima are formed in a beam of light when it passes through a slit in an experiment.

• As the light wave passes through a prism or slits it is diffracted into different parts.
• The highest point of the light wave is called maximum and is also known as maxima while the lowest point is called minimum and is known as minima.