In `YDSE` when slab of thickness `t` and refractive index `mu` is placed in front of one slit then central maxima shifts by one fringe width. Find out `t` in terms of `lambda` and `mu`.
In YDSE , slab of thickness t and refractive index mu is placed in front of any slit. Then displacement of central maximu is terms of fringe width when light of wavelength lamda is incident on system is
In Young's double-slit experiment, let A and B be the two slit. A thin film of thickness t and refractive index mu is placed in front of A. Let beta = fringe width. Then the central maxima will shift
In Young’s double slit experiment a transparent sheet of thickness t and refractive index mu is placed in front of one of the slits and the central fringe moves away from the central line. It was found that when temperature was raised by Deltatheta the central fringe was back on the central line (at C). It is known that temperature coefficient of linear expan- sion of the material of the transparent sheet is alpha . A young scientist modeled that the refractive index of the material changes with temperature as Deltamu"= – gama Deltatheta . Find Deltatheta in terms of other given quantities. D and d are given and have usual meaning.
In Young’s experiment, monochromatic light through a single slit S is used to illuminate the two slits S_1 and S_2 . Interference fringes are obtained on a screen. The fringe width is found to be w. Now a thin sheet of mica (thickness t and refractive index mu ) is placed near and in front of one of the two slits. Now the fringe width is found to be w’, then :
In a young's double slit experiment ,let A and B be the two slits.A thin film film of thickness t and refractive index mu is pklaced in front of A .Let beta =fringe width.The central maximum will shift:
When a thin transparent plate of thickness t and refractive index mu is placed in the path of one the two interfering waves of light, then the path difference changes by
In a YDSE experiment the two slits are covered with a transparent membrane of negligible thickness which allows light to pass through it but does not allow water. A glass slab of thickness t=0.41 mm and refractive index mu_(g)=1.5 is placed infront of one of the slits as shown in the figure. The separation between the slits is d=0.30 mm . The entire space to the left of the slits is filled with water of refractive index mu_(w)=4//3 . A coherent light of intensity I and absolute wavelength lambda=5000Å is being incident on the slits making an angle 30^(@) with horizontal. If screen is placed at a distance D=1m from the slits, find ( a ) the position of central maxima. ( b ) the intensity at point O .
In a modified YDSE, the region between the screen and slits is immersed in a liquid whose refractive index varies with time as mu_(1) = (5 // 2) - (T // 4) until it reaches s steady state value of 5 // 4 . A glass plate of thickness 36 mu m and refractive index 3//2 is introduced in front of one of the slits. Find the time when central maxima is at point O. located symmetrically on the x-asix.
A plate of thickness t made of a material of refractive index mu is placed in front of one of the slits in a double slit experiment. (a) Find the changes in he optical path due to introduction of the plate. (b) Wht should be the minimum thickness t which will make the intensity at the centre of the fringe pattern zero ? Wavelength of the light used is lamda . Neglect any absorption of light in the plate.
