Thin films such as soap bubbles or a thin layer of oil on water show bequtiful colours,when illuminated by white ligth.Explain the observation.

In these question, a statement of asertion followed by a statement of reason is given .Choose the correct answer out of the following choices: Assertion and reason both are correct statements and reason is correct explanation for assertion. Assertion and reason both are correct statements but reason is not correct explanation for assertion. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement but reason is correct statement. Assertion:Thin films such as soap bubble or a thin layer of ol on water show beautiful colours,when illuminated by white light. Reason:It happens due to the interfernce of light reflected from the upper and lower surface ot the thin film.

A monochromatic beam of light is used for the formation of fringes on the screen by illuminating the two slits in the Young's double slit interference experiment. When a thin film of mica is interposed in the path of one of the interfering beams, then

Colours appear on a thin soap film and soap bubbles due to the phenomenon of

Explain the colour formation in a thin oil film.

Draw a labelled diagram to show how interference can take place in thin transparent films by reflected ligth.

When a thin trjansparent film is placed just in front of one of the two slitts in the Young's double slit experiment using white light ,what change results in the fringe system?

Figure 10.24 (a) shows a thin liquid film supporting a small weight = 4.5xx 10^-2 N. What is the weight supported by a film of the same liquid at the same temperature in Fig. (b) and (c) ? Explain your answer physically:

In Young's double slit experiment ,the central bright fringe produced by ligth of wavelength 5,600 overset@A shifts to the position of 5th brigth fringe,when thin transparent film of refractive index 1.28 is introduced in the path of light from one of two slits.Find the thickness of te film.