(English Medium) ICSE Class 9 - CISCE Question Bank Solutions

In the following figure, the pitch of the screw is 1 mm. Calculate:
(i) the least count of screw gauge and
(ii) the reading represented in the figure.

Name the measuring employed to measure the diameter of a needle.

Name the measuring employed to measure the thickness of a paper.

Name the measuring employed to measure the diameter of a pencil.

State whether the following statement is true or false by writing T/F against it.

The diameter of a wire can be measured more accurately by using vernier calipers than by a screw gauge.

State whether the following statement is true or false by writing T/F against it.

A metre scale can measure a length of 6.346 cm.

State whether the following statement is true or false by writing T/F against it.

The ratchet of a screw gauge is used to measure the depth of a beaker.

State whether the following statement is true or false by writing T/F against it.

The least count of a screw gauge can be lowered by increasing the number of divisions on its thimble.

State whether the following statement is true or false by writing T/F against it.

The metre scale, vernier calipers, and screw gauge are in decreasing order of least count.

What is the least count in the case of the following instrument?

Metre scale

What is the least count in the case of the following instrument?

vernier calipers

What is the least count in the case of the following instrument?

Screw gauge

What is the least count in the case of the following instrument?

Stopwatch

What is the least count in the case of the following instrument?

Thermometer

What is the least count in the case of the following instrument?

Spring balance