Question

If there are $10$ minor divisions between two major divisions, one major division representing $1$℃, one minor division will be equal to

• A. $1.1℃$
• B. $1℃$
• C. $0.1℃$
• D. $0.01℃$

Answer 1

The correct option is C $0.1℃$

One major division equals $10$ minor divisions.
∴ $1$ minor division = $1/10$ X Major Division
∴ $1$ minor division (Temperature reading) = $1/10$ X Major Division (Temperature Reading)
∴ $1$ minor division (Temperature reading) = $1/10$ X $1℃$
So, 1 minor division = $0.1℃$. This is called the least count of thermometer.