Home
Class 12
PHYSICS
Coefficient of thermal conductivity has ...

Coefficient of thermal conductivity has the dimensions:

A

`[MLT^(-3)K^(-1)]`

B

`[ML^3T^3K^2]`

C

`[ML^3T^(-3)K^(-2)]`

D

`[M^2L^3T^(-3)K^2]`

Text Solution

Verified by Experts

The correct Answer is:
A
As `Q=(KA(theta_1-theta_2)t)/d`
`[K]=([Q][d])/([A][theta_1-theta_2][t])`
`([ML^2T^(-2)][L])/([L^2][K][T])=[MLT^(-3)K^(-1)]`
Promotional Banner

Similar Questions

Explore conceptually related problems

Coefficent Of Thermal Conductivity

Thermal conduction

" A metal rod of area of cross section A has length L and coefficient of thermal conductivity K The thermal resistance of the rod is "

A metal rod of area of cross section A has length L and coefficient of thermal conductivity K the thermal resistance of the rod is .

The unit of thermal conductivity is :

The dimensions of coefficient of thermal conductivity is

The dimensional formula for coefficient of thermal conductivity is :

Coefficient of thermal conductivity is the product of heat, distance and reciprocal of (area x difference in temperature x time). The new value of a unit of coefficient of thermal conductivity, if fundamental units are 21.6 kg, 1 decimetre, 4 K and 1 minute will be ______ xx 10^(-6) new units.