Which of the following is the most suitable instrument to measure the thickness of a coin? *2 pointsMicrometre screw gaugeVernier callipersTape measureMetre rule

The most suitable instrument to measure the thickness of a coin is a Micrometre screw gauge.

Here's why:

1. Tape Measure and Metre Rule: These are used for measuring larger distances or lengths such as the length of a room or table. They are not precise enough to measure something as small as the thickness of a coin.

2. Vernier Callipers: These can measure small dimensions and are more precise than a tape measure or metre rule. However, they are typically used for measuring internal and external diameters of objects. While they could be used to measure the thickness of a coin, there is a more suitable option.

3. Micrometre Screw Gauge: This is the most suitable instrument for measuring the thickness of a coin. It is designed to measure small dimensions with high accuracy and precision. It can measure up to one hundredth of a millimetre (0.01mm), making it ideal for measuring something as thin as a coin.

The most suitable instrument to measure the thickness of a coin is a Micrometre screw gauge.

Here's why:

1. Tape Measure and Metre Rule: These are typically used for measuring larger distances, such as the length of a room or the width of a bookshelf. They are not precise enough to measure something as small as a coin.

2. Vernier Callipers: These can measure small objects, and they are more precise than a tape measure or a metre rule. However, they are not the best tool for measuring the thickness of a coin because they can be difficult to use with such a thin object.

3. Micrometre Screw Gauge: This is the best tool for the job. It is designed to measure small objects with high precision. The screw gauge has a smaller minimum scale than the vernier callipers, which makes it more accurate for measuring the thickness of a coin.