In Young wavelength `lambda`, the intensity of light at a point on the screen where path difference is `lambda`, is K units. What is the intensity of light at a point where path difference is `lambda/3`?

In a Young's double slit experiment,the intensity at a point,where the path difference is lambda//6 ( lambda being the wabelength of the light used) is I .If I_0 denotwes the maximum intensity,then I//I_0 is equal to

Consider interference between waves from two sources of intensities I and 4I.find intensities at pints,where phase difference is pi .

In a Young's double slit experiment,the separation betwen the two slits is d and the wavelength of the light is lambda .The intensity of light falling on the slit 1 is four times the intesntiy of light falling on slit 2.Choose the correct choice(s).

Light of having wavelength lambda and of intensitty I_0 passes through a material of thickness d.The resulatant intensity is

Two beams of light having intensities I and 4 I interfere to produce a fringe pattern on a screen.The phase difference between the beams is pi//2 at point A and pi at point B.Then the differnece between the resultant intensities at A and B is

If LM is a line parallel to the y-axis at a distance of 3 units What is the difference between the abscissae of the points L and M?

The coordinates of the point P on the line vec r=( hat i+ hat j+ hat k)+lambda(- hat i+ hat j- hat k) which is nearest to the origin is