Question
How does the presentation of data in a tabular form help us in analyzing them? Explain with one example.
✓
Answer
The presentation of the data in a tabular form helps in quickly grasping and analyzing the recorded observations. For example, to measure a diameter using a vernier caliper we record the following data in a tabular form as follows
The measurements corresponding to one physical quantity from one instrument must be recorded in one table. And the name of the instrument should be written on top. Observation must be recorded up to the limit of the instrument and form the recorded individual observations, calculate the mean value, and record it at the bottom of the column.
Vernier caliper
| No. of observations | Main scale reading (cm) | No. of vernier divisions p coinciding with main scale | Vernier reading =L.C. X p (cm) | Observed diameter |
| 1 | ||||
| 2 | ||||
| 3 |
The measurements corresponding to one physical quantity from one instrument must be recorded in one table. And the name of the instrument should be written on top. Observation must be recorded up to the limit of the instrument and form the recorded individual observations, calculate the mean value, and record it at the bottom of the column.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A 50 m long train passes over a bridge at a speed of 30 km/h. If it takes 36 seconds to cross the bridge, calculate the length of the bridge.
Distinguish between real and virtual images.
State two advantages and two limitations of producing electricity from solar energy.
A cork cut in the form of a cylinder floats in alcohol of density $0.8 gcm^{-3}$, such that $3 / 4$ of its length is outside alcohol. If the total length of cylinder is 35 cm and area of cross-section 25 $cm ^2$, calculate :
(1) density of cork
(2) wt. of cork
(3) extra force required to submerge it in alcohol
→(1) density of cork
(2) wt. of cork
(3) extra force required to submerge it in alcohol
State the laws of liquid pressure.
How will you distinguish between a plane mirror, a concave mirror and a convex mirror, without touching them?
Figure (a) shows the displacement-time graph for the motion of a body. Use it to calculate the velocity of the body at t = 1 s, 2 s and 3 s, and then draw the velocity-time graph in Figure (b) for it.
 |
 |
| (a) | (b) |
What fraction of an iceberg of density 910 $kgm^{-3}$ will be above the surface of sea water of density $1170 kgm ^{-3}$ ?
→A body is held immersed in a liquid. (i) Name the two forces acting on the body and draw a diagram to show these forces. (ii) State how the magnitudes of two forces mentioned in part (i) determine whether the body will float or sink in liquid when it is released. (iii) What is the net force on the body if it (a) sinks and (b) floats?
Describe an experiment to verify the Archimedes' principle.