In order that a thin film of oil floating on die surface of water shows colours due to interference, the thickness of the oil film should be of the order of:

Question

In order that a thin film of oil floating on die surface of water shows colours due to interference, the thickness of the oil film should be of the order of: (A)  10000 mathringA (B)  50000 mathringA (C)  10 mathringA (D)  1 cm

Tardigrade Admin · Accepted Answer

When we observe the colours of the thin film oil floating over the surface of water, the thickness of the film must be of the order of the wavelength of visible light. Therefore out of given options 5000 mathringA is the correct answer since range of wavelength of visible light is 4000 mathringA to 4900 mathringA

Q. In order that a thin film of oil floating on die surface of water shows colours due to interference, the thickness of the oil film should be of the order of:

$10000 \overset{˚}{A}$

$50000 \overset{˚}{A}$

$10 \overset{˚}{A}$

$1 c m$

Q. In order that a thin film of oil floating on die surface of water shows colours due to interference, the thickness of the oil film should be of the order of:

10000A˚

50000A˚

10A˚

1cm

When we observe the colours of the thin film oil floating over the surface of water, the thickness of the film must be of the order of the wavelength of visible light. Therefore out of given options 5000A˚ is the correct answer since range of wavelength of visible light is 4000A˚ to 4900A˚

$10000 \overset{˚}{A}$

$50000 \overset{˚}{A}$

$10 \overset{˚}{A}$

$1 c m$