Light of wavelength `5000 Å` is travelling in air. A thin glass plate (mu=1.5) of thickness `1 mm` is placed in the path of light. The change in phase of light is

Light of wavelength 7200Å in air has a wavelength in glass (mu=1.5) equal to:

Light of wavelength 7200Å in air has a wavelength in glass (mu=1.5) equal to:

A parallel beam of sodium light of wavelength 6000 Å is incident on a thin glass plate of mu=1.5 , such that the angle of refraction in the plate is 60^(@) . The smallest thickness of the plate which will make it appear dark by reflected light is

A parallel beam of sodium light of wavelength 6000 Å is incident on a thin glass plate of mu=1.5 , such that the angle of refraction in the plate is 60^(@) . The smallest thickness of the plate which will make it appear dark by reflected light is

Light of wavelength 5890 Å travelling in air enters water of mu = 4//3 . What will be the frequency and wavelength of light in water ?

Fringes are produced with monochromatic light of wavelength 5500 Å. A thin glass plate of R.I. 1.5 is then placed normally in one of the paths of interfering beams and the central bright fringe is found to be shifted to the position, previously occupied by the third bright band from the centre. the thickness of the glass plate is

Light of wavelength 4500Å in vacuum enters into a glass block of refractive index 1.5. What is the wavelength of light in the glass block?