Advertisements
Advertisements
प्रश्न
Draw a neat and labelled diagram of a vernier callipers. Name its main parts and state their functions.
Advertisements
उत्तर
Diagram of vernier callipers:
Main parts and their functions:
Main scale: It is used to measure length correct up to 1 mm.
Vernier scale: It helps to measure length correct up to 0.1 mm.
Outside jaws: It helps to measure length of a rod, diameter of a sphere, external diameter of a hollow cylinder.
Inside jaws: It helps to measure the internal diameter of a hollow cylinder or pipe.
Strip: It helps to measure the depth of a beaker or a bottle.
APPEARS IN
संबंधित प्रश्न
The wavelength of light is 589 nm. what is its wavelength in Å?
When is a vernier Callipers said to be free from zero error?
State three uses of the vernier callipers.
A boy uses a vernier callipers to measure the thickness of his pencil. He measures it to be 1.4 mm. If the zero error of vernier callipers is +0.02 cm, what is the correct thickness of the pencil?
Define the term pitch.
A micrometre screw gauge has a negative zero error of 7 divisions. While measuring the diameter of a wire the reading on the main scale is 2 divisions and 79th circular scale division coincides with baseline.
If the number of divisions on the main scale is 10 to a centimetre and circular scale has 100 divisions, calculate
- pitch
- observed diameter
- least count
- corrected diameter.
State the formula for calculating the pitch of screw.
State the formula for calculating the least count of screw.
Thickness of a cricket ball is measured by ______.
