Wave Optics Tes...

The wavefront of a light beam is given by the equation $$x+2y+3z=c$$ (where $$c$$ is arbitrary constant of light). What is the angle made by the light with the y-axis is

In Young's interference experiment, if the slits are of unequal width, then

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

The resolving power of an electron microscope operated at 16 kV is R. The resolving power of the electron microscope when operated at 4 kV is

One of the two slits in YDSE is painted over, so that it transmits only light waves having intensity half of the intensity of the light waves having half of the intensity of the light waves through the other slit. As a result of this

A certain region of a soap bubble reflects red light of vacuum wavelength $$\lambda=650nm$$. What is the minimum thickness that this region of the soap bubble could have? Take the index of reflection of the soap film to be $$1.41$$

Light from a source travel out with a velocity c. If the source moves away from the observer with a velocity v, then relative velocity of light w.r.t observer is

If the path difference between the slits $${S}_{1}$$ and $${S}_{2}$$ is $$\lambda$$, the central fringe will have an intensity of

A thin slice is cut out of a glass cylinder along a plane parallel to its axis. The slice is placed on a flat glass plae as shown in figure. The observed interference fringes from this combination shall be

Resolving power of a telescope increases with