76) According to Stefan′s law, the total radiation from a black body per second per unit area is proportional to

absolute temperature

Answer is:

t

absolute temperature (T)

Answer is:

p = 0, x = 0 and a = 1

p=l,T = 0anda = 0

p = 0, x = 1 and a = 0

x = 0, a + p = 1where a = absorptivity, p = reflectivity, x = transmissivity

Answer is:

p = 0, x = 0 and a = 1

p= l,T = 0anda = 0

p = 0, x = 1 and a = 0

x = 0, a + p = 0where a = absorptivity, p == reflectivity, X = transmissivity.

Answer is:

p = 0, x = 0 and a = 1

p=l,x = 0anda = 0

p = 0, x = 1 and a = 0

x - 0, a + p = 1where a = absorptivity, p = reflectivity, X = transmissivity.

Answer is: