On increasing the temperature of a substance gradually, its colour becomes

Question

On increasing the temperature of a substance gradually, its colour becomes (A) yellow (B) red (C) white (D) green

Tardigrade Admin · Accepted Answer

The Weinâs law states that the temperature ( T ) propto (1/λm). Therefore on increasing the temperature, the wavelength will decrease. Since the yellow colour is of lower minimum wavelength, therefore colour of substance becomes yellow.

Q. On increasing the temperature of a substance gradually, its colour becomes

yellow

red

white

green

The Wein’s law states that the temperature $(T) \propto \frac{1}{λ _{m}}$ .
Therefore on increasing the temperature, the wavelength will decrease. Since the yellow colour is of lower minimum wavelength, therefore colour of substance becomes yellow.

Q. On increasing the temperature of a substance gradually, its colour becomes

yellow

red

white

green

The Wein’s law states that the temperature (T)∝λm​1​. Therefore on increasing the temperature, the wavelength will decrease. Since the yellow colour is of lower minimum wavelength, therefore colour of substance becomes yellow.

The Wein’s law states that the temperature $(T) \propto \frac{1}{λ _{m}}$ .
Therefore on increasing the temperature, the wavelength will decrease. Since the yellow colour is of lower minimum wavelength, therefore colour of substance becomes yellow.