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, the fringe pattern shifts by certain distance on the screen when mica sheet of refractive index 1.6 and thickness 1.964 microns is introduced in the path of one of the interfering waves. The mica sheet is then removed and the distance between the slits and screen is doubled. It is found that the distance between successive maxima now is same as the observed fringe shift upon the introduction of the mica sheet. Calculate the wavelength of the monochromatic light used in the experiment.

In double-slit experiment using light of wavelength 600 nm, the angular width of a fringe formed on a distant screen is 0.1^@ . What is the spacing between the two slits ?

If the monochromatic source in Young’s double slit experiment is white light, then

In Young’s double-slit experiment, an interference pattern is obtained on a screen by a light of wavelength 6000overset@A , coming from the coherent sources S_1 and S_2 .At certain point P on the screen, third dark fringe is formed. Then the path difference S_1P-S_2P in microns is

The maximum intensity in Young’s double slit experiment is I_0 .Distance between the slits is d=2lambda ,where lambda is the wavelength of monochromatic light used in experiment. What will be the intensity of light in front of one of the slits on a screen at a distance D = 6 d?

When a metal surface is illuminated by a monochromatic light of wave-length lambda , then the potential difference required to stop the ejection of electrons is 3V . When the same surface is illuminated by the light of wavelength 2lambda , then the potential difference required to stop the ejection of electrons is V . Then for photoelectric effect, the threshold wavelength for the metal surface will be

In Young's double slit experiment , the two coherent sources have different intensities . If the ratio of maximum intensity to the minimum intensity in the interference pattern produced is 25 : 1 . What was the ratio of intensities of the two sources ?

White light is used to illuminate the two slits in a Young's double slit experment . The separation between the slits is b and the screen is at a distance d ( d >> b ) from the slits . At a point on the screen directly in front of one of the slits , certain wavelengths are missing . Some of these missing wavelengths are