Question

The wavelength of maximum emitted energy of a body at 700 K is 4.08 $\mu m$. If the temperature of the body is raised to 1400 K, the wavelength of maximum emitted energy will be

• A.
• B. 16.32$\mu m$
• C. 8.16$\mu m$
• D. 2.04$\mu m$

Answer 1

Answer: (D)

2.04$\mu m$

Answer 2

$= 4.08 \times \frac { 700 } { 1400 } = 2.04 \mathrm {~m}$