Stefan Boltzmann law is applicable for heat transfer by?

Conduction
Convection
Radiation
Conduction and radiation combined

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 3

Stefan-Boltzmann law is applicable for radiation it states that the total radiant heat power emitted from a surface is proportional to the fourth power of its absolute temperature. The law applies only to blackbodies, theoretical surfaces that absorb all incident heat radiation.

4 views Answered 2022-09-01 13:21

Related Questions

According to Stefan Boltzmann law, ideal radiators emit radiant energy at a rate proportional to?

1 Answers 4 Views

According to Stefan Boltzmann law, the total radiation from a black body per second per unit area is directly proportional to the?

1 Answers 6 Views

A heat exchanger with heat transfer surface area A and overall heat transfer coefficient U handles two fluids of heat capacities Cmax and Cmin. The number of transfer units (NTU) used in the analysis of heat exchanger is specified as?

1 Answers 7 Views

A cube at high temperature is immersed in a constant temperature bath. It loses heat from its top, bottom and side surfaces with heat transfer coefficients of h₁, h₂ and h₃ respectively. The average heat transfer coefficient for the cube is?

1 Answers 32 Views

Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place?

1 Answers 12 Views

The average heat transfer co-efficient over the entire length of the plate (ha) and the local heat transfer co-efficient (hL), in case of heat transfer over a flat plate in lminar zone is related as?

1 Answers 5 Views

Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the?

1 Answers 5 Views

For shell and tube heat exchanger, with increasing heat transfer area, the purchased cost per unit heat transfer area?

1 Answers 5 Views

Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is?

1 Answers 5 Views

Stefan's law describes the mass transfer by?

1 Answers 5 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)