List of top Physics Questions on Interference Of Light Waves And Young’S Experiment

What are coherent sources? Why are they necessary for observing stable interference pattern? Draw a graph showing the variation of intensity of light with the position on the screen in Young’s double-slit experiment.

Find the intensity of light at a point on the screen when two interfering waves of the same intensity \((I_0)\) have a path difference of
(i) \(\frac{\lambda}{4}\)
(ii) \(\frac{\lambda}{3}\)

What are coherent sources? Why are they necessary for observing stable interference pattern? Draw a graph showing the variation of intensity of light with the position on the screen in Young’s double-slit experiment.

Find the intensity of light at a point on the screen when two interfering waves of the same intensity \((I_0)\) have a path difference of
(i) \(\frac{\lambda}{4}\)
(ii) \(\frac{\lambda}{3}\)

In Young’s double slit experiment, if the distance between the slits is increased while keeping all other parameters constant, the fringe width will:

In a Young's double slit experiment using monochromatic light of wavelength \(\lambda\), the intensity of light at a point on the screen is \(I_0\), where the path difference between two interfering waves is \(\lambda\). The path difference between the interfering waves at a point on the screen where the intensity is \(\dfrac{I_0}{4}\) will be

Match List-I with List-II in the context of Young's Double Slit Experiment.

Choose the correct answer from the options given below:

In Young's Double Slit Experiment, if the wavelength of light used is doubled while keeping all other quantities constant, the fringe width becomes:

In a Young's Double Slit Experiment (YDSE), the separation between the two coherent slits is halved, and the perpendicular distance between the plane of the slits and the viewing screen is doubled. If the initial fringe width was \( \beta \), what will the new modified fringe width \( \beta' \) be?

In a Young's double-slit experiment, two slits are 1.5 mm apart while the screen is 1.2 m away. When a light of wavelength 600 nm is incident on slits, the fringe width will be

Two coherent light waves, each having amplitude ‘a’, superpose to produce an interference pattern on a screen. The intensity of light as seen on the screen varies between:

Two coherent light waves, each of intensity \( I_0 \), superpose and produce an interference pattern on a screen. Obtain the expression for the resultant intensity at a point where the phase difference between the waves is \( \phi \). Write its maximum and minimum possible values.