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Assertion(A) : Blue colour of sky appear...

Assertion(A) : Blue colour of sky appears due to scattering of light.
Reason(R): Blue colour has shortest wavelength among all colours of white light.

Text Solution

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Violet has shortest wavelength, not blue.
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Knowledge Check

  • Blue colour of the sky is due to

    A
    Absorption of light by dust particle
    B
    Scattering of light by dust particle
    C
    Reflection of light by dust particle
    D
    Presence of clouds

  • (A) Clouds appear white due to scattering of light ( R) When size of objects are large compared to wavelength, all wavelengths scatter equally.

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true and R is not the correct explanation of A
    C
    A is true and R is false
    D
    Both A and R is false

  • A : In Young.s double slit expriment the band width for red colour is more R : Wavelength of red is small among the colours of white light.

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true and R is not the correct explanation of A
    C
    A is true and R is false
    D
    Both A and R are false

    • Similar Questions

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    Which colour of light has longest wavelength ?

    Sky appears blue in colour. Explain.

    (A) The blue colour of sky is on account of scattering of sunlight. ( R) The intensity of scattered light varies inversely as the fourth power of wavelength of light.

    (A) The sun looks reddish at the time of sunrise and sunset because of dispersion of light. ( R) The wavelength of red colour is less than the wavelength of blue colour.

    A : Young.s double slit experiment can be performed using a source of white light. R : The wavelength of red light is less than the wavelength of other colours in white light.

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