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Grade: 12th pass

                        

A clock with a brass pendulum has a period of 1sec at20oc if the Temperature increase to 30oc a)by how much does the period changes b)how much time does the clock gain or lose in aweek

10 months ago

Answers : (1)

Ashb fitness
13 Points
							
CLOCK PERIOD = T1 = 1 SEC AT 20
LET THE NEW TIME PERIOD BE T2
LET ALPHA BE (a) THE THERMAL EXPANSION COEFF. OF BRASS
T1 = 2*3.14*(L/g)^0.5
T2 = T1*(1+a*(temp diff.))^0.5
T2 = 1*(1+a*10)^0.5
B.} CHANGE IN TIME PERIOD AFTER A WEEK 
 = 0.5*a*(7*24*60*60)*(temp diff)
 = a*3024000
10 months ago
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