Advertisements
Advertisements
Question
The main scale of vernier callipers has 10 divisions in a centimetre and 10 vernier scale divisions coincide with 9 main scale divisions. Calculate
- pitch
- L.C. of vernier callipers.
Advertisements
Solution
Main scale divisions of vernier callipers in one centimetre = 10
Pitch = `"Unit of main scale"/"Number of divisions in the unit"`
= `1/10` cm
= 0.1 cm
Least count = `"Pitch"/"No. of vernier scale divisions"`
= `0.1/10` cm
= 0.01 cm
APPEARS IN
RELATED QUESTIONS
Describe the procedure to measure the diameter of a wire with the help of a screw gauge.
Who invented vernier callipers?
State the formula for determining least count for a vernier callipers.
State the formula for calculating length if:
Number of vernier scale division coinciding with the main scale and number of division of main scale on the left-hand side of zero of vernier scale is known.
State the correction if the positive error is 7 divisions when the least count is 0.01 cm.
How do you account for positive zero error for calculating the correct diameter of wires?
The following figure shows the reading of a vernier caliper used for measuring the thickness of a metal sheet.
(i) Find the least count of the instrument.
(ii) Calculate the thickness of the metal sheet.
