A metal plate of area 200 cm² radiates at a temperature at which its spectrum peaks…

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

Problem

A metal plate of area 200 cm² radiates

1.0 \times 10^{5}\,\text{W}

at a temperature at which its spectrum peaks at 600 nm. Calculate the emissivity of the surface. (a)

1.00

(b)

0.16

(c)

0.65

(d)

0.016