The thickness of a glass sheet is measured at six different places and the following readings are obtained : 1.21 mm, 1.24 mm, 1.19 mm, 1.15 mm, 1.22 mm, 1.25 mm. Find the most probable value of the thickness and percentage error in measurement.

Select the appropriate alternative answer for the following question: What is the raio of 1 mm to 1 cm?

The error in the measurement of the sides of a rectangle is 1%. The error in the measurement of its area is

The resistance of a wire of length 31.4 m and diameter 1 mm is 20 Omega . Find the resistivity of the material of the wire.

Calculate the specific resistance of the material of a wire having a resistance of 4.4 Omega , length 1.1 m and radius 0.2 mm.

Fill in the blanks in the conservations: 1 km =......mm = ...... pm

The error in measurement of radius of a sphere is 0.1% then error in its volume is -

A metal parallelopiped of measure 16 cm times 11 cm times 10 cm was melted to make coins. How many coins were made if the thickness and diameter of each coin was 2 mm and 2 cm respectively?

In the determination if Young's modulus ((Y = (4MLg)/(pild^(2)) by using searle's method, a wire of length L=2m and diameter d=0.5mm is used. For a load M=2.5kg , an extension l=0.25mm in the length of the wire is observed. Quantites D and l are measured using a screw gauge and a micrometer, respectively. they have the same pitch of 0.5mm . the number of divisions on their circular scale is 100 . the contrubution to the maximum probable error of the Y measurement

The density of a solid ball is to be determined in an experiment. The diameter of the ball is measured with a screw gauge, whose pitch is 0.5mm and there are 50 divisions on the circular scale. The reading on the main scale is 2.5mm and that on circular scale is 20 divisions. if the measured mass of the ball has a relative error of 2% , the relative percentage error in the density is