Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, = Density of substance, S = Specific heat, and k = Thermal conductivity)

Thermal diffusivity of a substance is given by (where h = Thermal diff

1.	Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, = Density of substance, S = Specific heat, and k = Thermal conductivity)
A.	<img src="/_files/images/mechanical-engineering/heat-transfer-refrigeration-and-air-conditioning/406-40-1.png">
B.	<img src="/_files/images/mechanical-engineering/heat-transfer-refrigeration-and-air-conditioning/406-40-2.png">
C.	<img src="/_files/images/mechanical-engineering/heat-transfer-refrigeration-and-air-conditioning/406-40-3.png">
D.	<img src="/_files/images/mechanical-engineering/heat-transfer-refrigeration-and-air-conditioning/406-40-4.png">
Answer» B. <img src="/_files/images/mechanical-engineering/heat-transfer-refrigeration-and-air-conditioning/406-40-2.png">