Write an activity to measure the diameter of a metallic bob through vernier caliper and calculate its volume.
spam is not allowed!!
Answers
Answer:
Use of Vernier Callipers to
(i) measure diameter of a small spherical/cylindrical body,
(ii) measure the dimensions of a given regular body of known mass
and hence to determine its density; and
(iii) measure the internal diameter and depth of a given cylindrical object
like beaker/glass/calorimeter and hence to calculate its volume.
APPARATUS AND MATERIAL REQUIRED
Vernier Callipers, Spherical body, such as a pendulum bob or a glass
marble, rectangular block of known mass and cylindrical object like
a beaker/glass/calorimeter
DESCRIPTION OF THE MEASURING DEVICE
1. A Vernier Calliper has two scales–one main scale and a Vernier
scale, which slides along the main scale. The main scale and Vernier
scale are divided into small divisions though of different
magnitudes.
The main scale is graduated in cm and mm. It has two fixed jaws, A
and C, projected at right angles to the scale. The sliding Vernier scale
has jaws (B, D) projecting at right angles to it and also the main scale
and a metallic strip (N). The zero of
main scale and Vernier scale coincide
when the jaws are made to touch each
other. The jaws and metallic strip are
designed to measure the distance/
diameter of objects. Knob P is used to
slide the vernier scale on the main
scale. Screw S is used to fix the vernier
scale at a desired position.
2. The least count of a common scale
is 1mm. It is difficult to further
subdivide it to improve the least
count of the scale. A vernier scale
enables this to be achieved.
PRINCIPLE
The difference in the magnitude of one main scale division (M.S.D.)
and one vernier scale division (V.S.D.) is called the least count of the
instrument, as it is the smallest distance that can be measured using
the instrument.
n V.S.D. = (n – 1) M.S.D.
Formulas Used
(a) Least count of vernier callipers
the magnitude of the smallest division on the main scale
the total number of small divisions on the vernier scale =
(b) Density of a rectangular body =
Explanation:
hope it works ✌
hope it works ✌please mark it as brainliest ♥️
