A black body emits radiation of maximum intensity at 5000 mathringA when its temperature is 1227° C. If its temperature is increased to 2227° C then the maximum intensity of emitted radiation will be at wave length :-

Question

A black body emits radiation of maximum intensity at 5000 mathringA when its temperature is 1227° C. If its temperature is increased to 2227° C then the maximum intensity of emitted radiation will be at wave length :- (A) 2754 mathringA (B) 3000 mathringA (C) 3500 mathringA (D) 4000 mathringA

Tardigrade Admin · Accepted Answer

λ T = constant Kelvin (5000)(1500)=λ(2500) λ=5000 × (15/25)=3000 mathringA

Q. A black body emits radiation of maximum intensity at $5000 \overset{˚}{A}$ when its temperature is $122 7^{\circ} C$ . If its temperature is increased to $222 7^{\circ} C$ then the maximum intensity of emitted radiation will be at wave length :-

$2754 \overset{˚}{A}$

$3000 \overset{˚}{A}$

$3500 \overset{˚}{A}$

$4000 \overset{˚}{A}$

$λ T =$ constant Kelvin
$(5000) (1500) = λ (2500)$
$λ = 5000 \times \frac{15}{25} = 3000 \overset{˚}{A}$

Q. A black body emits radiation of maximum intensity at 5000A˚ when its temperature is 1227∘C. If its temperature is increased to 2227∘C then the maximum intensity of emitted radiation will be at wave length :-

2754A˚

3000A˚

3500A˚

4000A˚