Wave Optics Tes...

If $$I_0$$ is the intensity of the principal maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled

The separation between two coherent point sources is $$3 \ \lambda$$. On a line perpendicular to $$S_1S_2$$ and passing through $$S_2$$. Find the smallest distance where minimum of intensity occurs: 

The limit of resolution of 100 cm telescope for $$\lambda=5000 \mathring {A}$$ is approximately equal to

A plane wave front of wave length $$6000A$$ is incident  upon a slit of $$0.2mm$$ width, which enables fraunhofer's diffraction pattern to be obtained on a screen $$2m$$ away. Width of the central maxima in mm will be 

Parallel beam is

In Y.D.S.E. how many maxima can be obtained on the screen if wave length of light used is $$200 mm$$ & $$d = 700 mm$$ :- 

Newton's corpuscular model of light.

In the case of parallel beam,

According to Huygen's theory of light

 A beam of plane polarised light falls on a polarizer which rotates about axis of ray with angular velocity $$\omega $$. The energy passing through polrizer in one revolution if incident power is P is :