Wave Optics Tes...

If one of the two slits of a Young's double-slit experiment is painted so that it transmits half the light intensity as the second slit, then

Light waves travel in vacuum along the y-axis. Which of the following may represent the wavefront?

In a Young's interference experiment, the central bright fringe can be identified due to the fact that it

In YDSE,  when a glass plate of refractive index $$1.5$$ and thickness $$t$$ is placed in the path of one of the interfering beams (wavelength $$\lambda$$), intensity at the position where central maximum occured previously remains unchanged. The minimum thickness of glass plate is

In a double-slit experiment, instead of taking slits of equal width, one slit is made twice as wide as the other. Then, in the interference pattern

If $$\beta$$ is the bandwidth, in Young's double slit experiment, the distance between the first dark hand and sixth bright band is:

Out of the following statement which is not correct.

A bulb of $$100\ watt$$ is hanging at a height of one meter above the centre of a circular table of diameter $$4\ m$$. If the intensity at a point on its rim is $$I_0$$, then the intensity at the centre of the table will be

Young's experiment establishes that

Colours of thin films result from or
On a rainy day, a small oil on water show brilliant colours. This is due to