1. Tardigrade
  2. Question
  3. Physics
  4. Which of the following statement (s) is/are true about interference pattern due to double slits? I. The interference pattern has equal number of bright and dark band width . II. The pattern is obtained by superposition of two waves originating from the two narrow slits which are coherent. III. We get a minima at an angle of λ / 3 a where ' a ' is the distance between two slits IV. Fringes have equal intensity in interference pattern due to double slits.

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Q. Which of the following statement (s) is/are true about interference pattern due to double slits?
I. The interference pattern has equal number of bright and dark band width .
II. The pattern is obtained by superposition of two waves originating from the two narrow slits which are coherent.
III. We get a minima at an angle of $\lambda / 3 a$ where ' $a$ ' is the distance between two slits
IV. Fringes have equal intensity in interference pattern due to double slits.

Wave Optics

Solution:

The double slit interference pattern has a central maxima followed by minima. The dark and bright fringes are of equal width and intensity.