A student measured the diameter of a wire using a screw gauge with the least count 0.001 cm and listed the measurements. The measured value should be recorded as

Question

A student measured the diameter of a wire using a screw gauge with the least count 0.001 cm and listed the measurements. The measured value should be recorded as (A) 5.3200 cm (B) 5.3 cm (C) 5.32 cm (D) 5.320 cm

Tardigrade Admin · Accepted Answer

The least count (L.C.) of a screw guage is the smallest length which can be measured accurately with it.
As least count is

0.001 c m = \frac{1}{1000} c m

Hence measured value should be recorded upto 3 decimal places i.e., 5.320 cm

Q. A student measured the diameter of a wire using a screw gauge with the least count 0.001cm and listed the measurements. The measured value should be recorded as

5.3200 cm

5.3 cm

5.32 cm

5.320 cm

The least count (L.C.) of a screw guage is the smallest length which can be measured accurately with it. As least count is 0.001cm=10001​cm Hence measured value should be recorded upto 3 decimal places i.e., 5.320 cm

Q. A student measured the diameter of a wire using a screw gauge with the least count $0.001 c m$ and listed the measurements. The measured value should be recorded as

The least count (L.C.) of a screw guage is the smallest length which can be measured accurately with it.
As least count is $0.001 c m = \frac{1}{1000} c m$
Hence measured value should be recorded upto 3 decimal places i.e., 5.320 cm