Answer the following : The mean diameter of a thin brass rod is to be measured by vernier calipers.Why is a set of 100 measurements of the diameter expected to yield a more reliable estimate than a set of 5 measurements only ?

Answer the following : (a) You are given a tread and a metre scale. How will you estimate the diameter of the thread ? (b) A screw gauge has a pitch of 1.0 mm and 200 divisions on the circular scale. Do you think it is possible to increase the accuracy of the screw gauge arbitratily by increasing the number of divisions on the circular scale ? (c) The mean diameter of a thin brass rod is to be measured by vernier callipers. Why is a set of 100 measurements of the diameter expected to yield a more reliable estimate than a set of 5 measurement only ?

STATEMENT 1 meter of a cylinder measured using a Vernier caliper is more accurate than that measure using a meter scale STATEMENT-2 Least count of Vernier caliper is in lesser than least count of a meter scale.

A vernier callipers used by student has 20 divisions in 1cm on main scale. 10 vernier divisions coincide with 9 main scale divisions. When jaws are closed, zero of main scale is on left of zero of vernier scale and 6th divisions of vernier scale coincides with any mains scale divisions. He placed a wooden cylinder in between the jaws and measure the length. The zero of vernier scale is on right of 3.2 cm mark of main division and 8th division of vernier scale with any main scale division. When he measures diameter of cylinder he finds that zero of vernier scale lies on right of 1.5 cm mark of main scale and 6th division of vernier scale coincides with any main scale division. Correct values of measured length and diameter are

While measuring the diameter of a sphere with a vernier callipers M.S.R and V.S.D. are 35 mm and 5 respectively . If the vernier scale coinciding with 19 division of main scale what is the diameter of the sphere?

The diameter of a rod as measured by a screw gauge of pitch 0.5 mm is 8.3 mm . The pitch scale reading is "______"

The diameter of a brass metal bob is measured as 1.92xx10^(-2)m using a vernier callipers. The mass of the bob is measured to be 29.150xx10^(-3)kg using a physical balance. Find density of the meterial to correct number of significant figures.

Least count of a vernier callipers is 0.01 cm When the two jaws of the instrument touch each other the 5th division of the vernier scale coincide with a main scale division and the zero of the vernier scale lies to the left of the zero of the main scale. Furthermore while measuring the diameter of a sphere, the zero markof the vernier scale lies between 2.4 cm and 2.5 cm and the 6th vernier division coincides with a main scale division. Calculate the diameter of the sphere.