Question

why are wooden scales preferred to measure the length?

Answer 1

Answer:

The length of a piece of metal is measured with a wooden scale on a hot day. The measured value will be. Solution : The piece of metal will expand more as compared to the wooden scale.

Hope it's helpful

Make as brainelist answer

Answer 2

Answer:

Wooden scales are preferred because of their lower coefficient of thermal expression.

Explanation:

• Wood has a fairly low thermal expansion coefficient, thus the length does not alter noticeably in the summer and winter. Consequently, accurate measuring is feasible.
• The metal also has a rather high coefficient of thermal expansion, which causes measurements of the same length to vary on hot and cold days.

Coefficient of thermal expression:

• The change in size of an object caused by a change in temperature is described by the coefficient of thermal expansion.
• In more detail, it measures the fractional change in size for each degree change in temperature at constant pressure, where lower coefficients denote a reduced tendency for size change.