An electric furnace operates at

PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

727^{\circ}\text{C}

. Estimate the wavelength (in

\mu\text{m}

) at which its emission is maximum. (a)

29\,\mu\text{m}

(b)

0.29\,\mu\text{m}

(c)

2.9\,\mu\text{m}

(d)

5.8\,\mu\text{m}