Heat and Thermal ExpansionHard
Question
In the determination of Young′s modulus 
by using Searle′s method, a wire of length L = 2mand diameter d = 0.5 mm is used. For a load M = 2.5 kg, an extension l = 0.25 mm in the length of the wireis observed. Quantities d and l are measured using a screw gauge and a micrometer, respectively. Theyhave the same pitch of 0.5 mm. The number of divisions on their circular scale is 100. The contributions tothe maximum probable error of the Y measurement
by using Searle′s method, a wire of length L = 2mand diameter d = 0.5 mm is used. For a load M = 2.5 kg, an extension l = 0.25 mm in the length of the wireis observed. Quantities d and l are measured using a screw gauge and a micrometer, respectively. Theyhave the same pitch of 0.5 mm. The number of divisions on their circular scale is 100. The contributions tothe maximum probable error of the Y measurementOptions
A.due to the errors in the measurements of d and l are the same.
B.due to the error in the measurement of d is twice that due to the error in the measurement of l.
C.due to the error in the measurement of l is twice that due to the error in the measurement of d.
D.due to the error in the measurement of d is four times that due to the error in the measurement of l.
= 0.005 mm
More Heat and Thermal Expansion Questions
A body cools in a surrounding which at a constant temperature of θ0 Assume that it obeys Newton′s law of cool...In a 20 m deep lake, the bottom is at a constant temperature of 4oC. the air temperature is constant at -10oC. The therm...Twelve conditioning rods from the sides of a uniform cube of side l. If in steady state, B and H ends of the cube are 10...In a vertical U - tube containing a liquid, the two arms are maintained at different temperatures, t1and t2. The liquid ...An ice box made of styrofoam (thermal conductivity = 0.01 Jm-1 s-1 K-1) is used to keep liquids cool. It has a total wal...