Question

A black body emits radiations of maximum intensity at a wavelength of $5000 \AA$ , when the temperature of the body is $1227 ^ { \circ } \mathrm { C }$. If the temperature of the body is increased by , the maximum intensity of emitted radiation would be observed at

• A.
• B.
• C. $3500 \AA$
• D.

Answer 1

Answer: (B)

Answer 2

$\lambda _ { m _ { 2 } } = \frac { T _ { 1 } } { T _ { 2 } } \times \lambda _ { m _ { 1 } } = \frac { 1500 } { 2500 } \times 5000 = 3000 \AA$