Physics - Unit & Dimension Question with Solution | TestHub

PhysicsUnit & DimensionMiscellaneousEasy2 minPYQ_2020
PhysicsEasynumerical

Coefficient of thermal conductivity is the product of heat, distance and reciprocal of (area × difference in temperature×time). The new value of a unit of coefficient of thermal conductivity, if fundamental units are21.6kg, 1 decimetre, 4 K and 1 minute will be ______×10-6new units.

Answer:
2.50
Solution:

Coefficient of thermal conductivity,k=Q×lA×Δθ×t

 K=ml2t2×ll2×Δθ×t

 K=m×lΔθ×t3=21.6×0.14×603

=2.5×10-6new units

Stream:NTA_ABHYASSubject:PhysicsTopic:Unit & DimensionSubtopic:Miscellaneous
2mℹ️ Source: PYQ_2020

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