All radiations in a black body are
Reflected
Refracted
Transmitted
Absorbed
Also checkout these categories
Current Affairs April 2017 MCQ Electrostatics MCQ Urologic infections and inflammations MCQ Concrete Technology and Design MCQ Matter MCQ Change of State MCQ Machine Input MCQ Relativity MCQ Industrial Engineering & Production Management Test MCQ Windows 2000 Server MCQ Aldehydes and Ketones MCQ Plants Physiology MCQ
- The process of heat transfer from one particle of the body to another is called conduction, when the…
- According to Newton's law of cooling, the heat transfer from a hot body to a cold body is
- The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to
- Which of the following statement is correct?
- Depending on the radiating properties, a body will be opaque when
- Unit of thermal conductivity in M.K.S. units is
- The ratio of the energy absorbed by the body to total energy falling on it is called
- The radiation emitted by a black body is known as
- Conduction is a process of heat transfer
- Depending on the radiating properties, body will be transparent when
- The unit of overall coefficient of heat transfer is
- The natural convection air cooled condensers are used in
- When absorptivity (α) = 1, reflectivity (ρ) = 0 and transmissivity (τ) = 0, then the…
- Two long parallel surfaces each of emissivity 0.7 are maintained at different temperatures and accordingly…
- The amount of radiation mainly depends on
- The total emissivity power is .defined as the total amount of radiation emitted by a black body per…
- Metals are good conductors of heat because
- Thermal conductivity of solid metals with rise in temperature normally
- The thermal diffusivities for solids are generally
- Heat transfer in liquid and gases takes place by
- The unit of Stefan Boltzmann constant is
- The critical radius is the insulation radius at which the resistance to heat flow is
- Heat is transferred by all three modes of transfer, viz. conduction, convection and radiation in
- The time constant of a thermocouple is
- The rate of energy emission from unit surface area through unit solid angle, along a normal to the surface,…
- Radiation is the process of heat transfer in which heat flows from a ________, in a straight line, without…
- Thermal diffusivity of a substance is
- The transfer of heat by molecular collision is known as
- A grey body is one whose absorptivity
- Reynolds number (RN) is given by (where h = Film coefficient, l = Linear dimension, V = Velocity of…