Home
Class 12
PHYSICS
A thin soap film of thickness 3 xxx 10^(...

A thin soap film of thickness `3 xxx 10^(-7)m` and `mu = 1.5` is spreaded on a glass surface. When white light is normally incident on this sheet, find the colour which will be reflected strongly by the film.
`[4500Å]`

Answer

Step by step text solution for A thin soap film of thickness 3 xxx 10^(-7)m and mu = 1.5 is spreaded on a glass surface. When white light is normally incident on this sheet, find the colour which will be reflected strongly by the film. [4500Å] by PHYSICS experts to help you in doubts & scoring excellent marks in Class 12 exams.

Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • WAVE OPTICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise 6.2|1 Videos

  • WAVE OPTICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise 6.3|1 Videos

  • WAVE OPTICS

    PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise 6.1|1 Videos

  • THERMODYNAMICS LAWS & SPECIFIC HEATS OF GASES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise 3.4|11 Videos

  • WAVES

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems for Preparation of NSE, INPhO & IPhO|135 Videos

Similar Questions

Explore conceptually related problems

A thin film of thickness 4xx10^(-5) cm and mu =1.5 is iluminated by white light incident normal to its surface. What wavelength in the visible range be intensified in the reflected beam ?

A thin transparent film of thickness 3000 Å and refractive index 1.5 ud deposited on a sheet made of a metal. Assuming normal incidence of light and also that the film is a plane parallel one, what will be the color of a pot made from this sheet when observed in white light?

Knowledge Check

  • A 4.0 xx 10^(2) nm thick film of kerosene (n = 1.2) is floating on water. White light is normally incident on the film. What is the visible wavelength in air that has a maximum intensity after the light is reflected? Note: The visible wavelength range is 380 nm to 750 nm.

    A
    380 nm
    B
    480 nm
    C
    430 nm
    D
    530 nm

  • When light is incident on a soap film of thickness 5 xx 10^(-5)cm , wavelength which is maximum reflected in the visible region is 5320Å . The refractive index of the film will be :

    A
    1.22
    B
    1.33
    C
    1.51
    D
    1.83

  • White light falls normally on a film of soap water whose thickness is 5xx10^(-5)cm and refractive index is 1.40. The wavelengths in the visible region that are reflected the most strongly are :

    A
    5000 Å and 4000 Å
    B
    5400 Å and 4000 Å
    C
    6000 Å and 5000 Å
    D
    4500 Å only

    • Similar Questions

    Explore conceptually related problems

    Oil film of thickness 1 mu m is deposited on a glass plate. Refractive index of oil is 1.25 and that of the glass is 1.5. Which wavelength in the visible region (400 nm to 700 nm) will be strongly reflected by this film?

    An oil film (n = 1.45) floating on water is illuminated by white light at normal incidence. The film is 280 nm thick. Find (a) the color or the light in the visible specturm most strongly reflected and (b) the color of the light in the specturm most strongly transmitted. Explain your reasoning.

    A monochromatic light of wavelength 5000Å incident normally on slit plane of YDSE setup. If d = 5 xx 10^(-4)m and D = 1 m and a thin film thickness 1.5 xx 10^(-6)m and mu = 1.5 is place in front of one of the slits, find intensity of light at the centre of screen if each slit produces an intensity I_(0) on screen. [0]

    A soap film of 5xx10^(-15) cm thick is viewed at an angle of 35^(@) to the normal. Find the wavelength of light in the visible spectrum which will be absent from reflected light (mu=1.3) . Given wavelength range of the visible spectrum is 3900 Å to 7800 Å.

    A thin film of refractive index 1.5 and thickness 4 xx 10^(-5) cm is illuminated by light normal to the surface. What wavelength within the visible spectrum will be intensified in the reflected beam?

    Home
    Profile