Differentiate clearly between thermal conduction,thermal convection,and thermal radiation.
(N/A) Thermal energy can be transferred through three distinct mechanisms:
$1$. Thermal Conduction: Heat transfer in solids where particles vibrate about their mean positions without net displacement. It does not require gravity and does not involve the formation of currents.
$2$. Thermal Convection: Heat transfer in fluids (liquids and gases) where particles physically move from one region to another,carrying thermal energy. This process requires gravity and leads to the formation of convection currents.
$3$. Thermal Radiation: Heat transfer in the form of electromagnetic waves (specifically infrared radiation). It does not require any material medium for propagation and can occur in a vacuum.
$1$. Thermal Conduction: Heat transfer in solids where particles vibrate about their mean positions without net displacement. It does not require gravity and does not involve the formation of currents.
$2$. Thermal Convection: Heat transfer in fluids (liquids and gases) where particles physically move from one region to another,carrying thermal energy. This process requires gravity and leads to the formation of convection currents.
$3$. Thermal Radiation: Heat transfer in the form of electromagnetic waves (specifically infrared radiation). It does not require any material medium for propagation and can occur in a vacuum.
Explore More
Similar Questions
Statement $A$: Convection involves flow of matter within a fluid due to unequal temperatures of its parts.
Statement $B$: $A$ hot bar placed under a running tap water loses heat due to the effect of convection within water.
Statement $C$: Heat transfer always involves a temperature difference between two systems.
Statement $B$: $A$ hot bar placed under a running tap water loses heat due to the effect of convection within water.
Statement $C$: Heat transfer always involves a temperature difference between two systems.
Three identical rods $AB$,$CD$ and $PQ$ are joined as shown. $P$ and $Q$ are midpoints of $AB$ and $CD$ respectively. Ends $A, B, C$ and $D$ are maintained at $0^{\circ} C, 100^{\circ} C, 30^{\circ} C$ and $60^{\circ} C$ respectively. The direction of heat flow in $PQ$ is
$A$ hot black body emits energy at the rate of $16 \ J \ m^{-2} \ s^{-1}$ and its most intense radiation corresponds to $20,000 \ \mathring{A}$. When the temperature of this body is further increased and its most intense radiation corresponds to $10,000 \ \mathring{A}$,then the energy radiated in $J \ m^{-2} \ s^{-1}$ will be
Medium
View SolutionThe power radiated by a black body is $P$ and it radiates maximum energy around the wavelength $\lambda_0$. Now the temperature of the black body is changed so that it radiates maximum energy around wavelength $\left(\frac{\lambda_0}{2}\right)$. The power radiated by it will now increase by a factor of
In a closed room,heat transfer takes place by
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo