If the absorptance and reflectance of a surfa | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) For any surface,the sum of absorptance $(a)$,reflectance $(r)$,and transmittance $(t)$ is equal to $1$,i.e.,$a + r + t = 1$.Given,$a = 0.4$ and $r

Vedclass · Accepted Answer

The body will be perfectly opaque.

Vedclass · Answer

(D) For any surface,the sum of absorptance $(a)$,reflectance $(r)$,and transmittance $(t)$ is equal to $1$,i.e.,$a + r + t = 1$.Given,$a = 0.4$ and $r = 0.6$.Substituting these values into the equation: $0.4 + 0.6 + t = 1$.$1.0 + t = 1$.Therefore,$t = 0$.Since the transmittance $(t)$ is $0$,no radiation can pass through the body.Thus,the body is perfectly opaque.

If the absorptance and reflectance of a surface are $0.4$ and $0.6$ respectively,then:

Similar Questions

If a vessel with black spots is heated to a very high temperature and then taken into a dark room,then:

$A$ hot body will radiate heat most rapidly if its surface is

Select the incorrect statement.

An ideal black body at room temperature is thrown into a furnace. It is observed that:

For athermanous substances,the coefficient of transmission is

Vedclass Test Series

Exam Paper Generator

Online Exam Module