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The colour of a star indicates its...

The colour of a star indicates its

A

temperature

B

velocity

C

size

D

length

Text Solution

Verified by Experts

The correct Answer is:
A
From Wein's displacement law, we have
`lambda_(m)T =` constant
where `lambda_(m)` is maximum wavelenght, T is absolute temperature. That means as the temperature of the black body reises, the maximum energy emitted shifts towards shorter wavelength. Hence, star appering raddish has the lowest temperature and that appering bluish has the hightest temperature.
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Knowledge Check

  • The colour of a star is an indication of its

    A
    size
    B
    temperature
    C
    weight
    D
    distance

  • The colour of a star is an Indication of its

    A
    Distance from the sun
    B
    Luminosity
    C
    Distance from the earth
    D
    Temperature

  • The colour of a star is a measure of its .

    A
    age
    B
    temperature
    C
    size
    D
    distance from the earth
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