Mean corrected thickness of the block, h=. Mean corrected length of the block, l=.cm Vernier Constant, V.C.= 1 M.S.D.-1 V.S.D. Determination of Vernier constant (Least Count ) of the vernier callipers:.Click on the 'Reset' button to reset and perform the experiment once again.To find the ‘Depth’ of the beaker, drag the jaw of the vernier scale away from the jaw of the main scale till the metallic strip touches the bottom of the beaker.To find ‘Internal Diameter’ drag the mouse to move the jaw of the vernier scale away from the jaw of the main scale till the jaw touches the opposite inner wall of the beaker.If the object selected is the ‘Beaker’.Click on the ‘Check’ button to find if the reading entered is correct.Enter the reading in the ‘Enter Reading’ text box.Calculate the dimension using the equation 2.Note the MSR and VSR value that exactly coincides with the main scale.Based on the object selected, select the physical dimension to be measured.Drag the movable jaw so that it touches the object.The object is placed between the jaws of the vernier caliper.Select the object to measure by clicking on it.Simulator Procedure (as performed through the Online Labs) To find the ‘Depth’ of the beaker, move the metallic strip till it touches the bottom of the beaker.Then repeat steps 4 to 8.To measure the internal diameter of a calorimeter or beaker, place the beaker upside down over the internal jaws of the vernier calipers.Then repeat the steps 4 to 8.Take the mean of the different values of the diameter and show that in the result with the proper unit.Now find total reading using the equation, TR = MSR+VSR = N+(n x L.C) and apply the zero correction.Repeat steps 4 to 7 for three different positions and record the observations.You'll have to repeat steps 5 and 6 after rotating the body by 90 o for measuring the diameter in a perpendicular direction.Note the number (n) of the Vernier scale division which coincides with the division of the main scale.This reading (N) is called main scale reading (MSR). Record the main scale reading just before the zero mark of the vernier scale. Note the position of the zero mark of the Vernier scale on the main scale.That done, tighten the screw attached to the Vernier scale. Open the jaws of the Vernier Calliper and place the sphere or cylinder between the two jaws and adjust the movable jaw, such that it gently grips the body without any undue pressure on it.If there is no zero error, then record 'zero error nil'. Do this three times and record the values. Now, bring the movable jaw in close contact with the fixed jaw and find the zero error.We'll first determine the vernier constant (VC), which is the least count (L.C) of the vernier calliper and record it stepwise as in the equation, L.C = 1 MSD - 1 VSD.A small rectangular metallic block of known mass.A spherical body ( it can be a pendulum bob).
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