Basic Maths and Units and DimensionsHard
Question
If a piece of metal is heated to temperature θ and then allowed to cool in a room which is at temperature θ0 the graph between the temperature T of the metal and time t will be closed to :
Options
A.
B.
C.
D.
Solution
By Newton′s Law of cooling
T = TS + (TH - TS)e-kt
TS → Temp. of surrounding
TH → Temp. of body at t = 0
K → constant
T → Temp. of body at time t
So graph is
Create a free account to view solution
View Solution FreeTopic: Basic Maths and Units and Dimensions·Practice all Basic Maths and Units and Dimensions questions
More Basic Maths and Units and Dimensions Questions
Two stones are thrown up simultaneously with initial speeds u1 and u2 (u2 > u1). They hit the ground after 6s and 10s...Tube A has both ends open while tube B has one end closed, otherwise they are identical. The ratio of fundamental freque...Three identical bodies are at temperature T1, T2 and T3 having e1, e2 and e3 as their respective emissivities. The therm...Equimolar solutions of the following substances were prepared separately. Which one of these will record the highest pH ...In all the given cases blocks are in contact and the forces are applied as shown. All the surfaces are smooth. Then in w...