In Young's double slit experiment using monochromatic light of wavelength `lambda`, the intensity of light at a point on the screen where path diff. is `lambda` is `K` units. Find the intensity of light at a point where path difference is `lambda//3`.

(a) Why are coherent sources necessary to produce a sustained interference pattern ? (b) In Young's double slit experiment using monochromatic light of wavelength lamda , the intensity of light at a point on the screen where path difference is lamda , is K units. Find out the intensity of light at a point where path difference is lamda//3 .

(a) Why are coherent sources necessary to produce a sustained interference pattern ? (b) In Young's double slit experiment using monochromatic light of wavelength lamda , the intensity of light at a point on the screen where path difference is lamda , is K units. Find out the intensity of light at a point where path difference is lamda//3 .

In Young's double-slit experiment using monochromatic light of 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 Young's double-slit experiment using monochromatic light of 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 Young's double-slit experiment using monochromatic light of 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 lgight at a point where path difference is lambda/3 .

In Young's double-slit experiment using monochromatic light of 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 lgight at a point where path difference is lambda/3 .

(a) (i) Two independent mono chromatic sources of light cannot produced a sustained interference pattern'. Give reason. (ii) Light waves each of amplitude ''a'' and frequency ''w'', emanating from two coherent light sources superpose at a point. If the displacements due to these waves is given by y_(3)=a cos omega t and y_(2)=a cos(omega t+phi) where phi is the phase difference between the two, obtain the expression for the resultant intensity at the point. (b) In Young's double slit experiment, using monochromatic light of wavelength lambda , the intensity of light at a point on the screen where path difference is lambda , is K units. Find out the intensity of light at a point where path difference is lambda//3 .