Question

l.c = 0.01cm
university funded by : ministry of electronics and
ministry of education government of india

Explanation:

Step1: Read main scale reading

The main scale reading (MSR) is the value on the main scale just before the zero of the vernier scale. From the image, this is $2.1\ \text{cm}$.

Step2: Find vernier coincidence

Look for the vernier scale division that aligns perfectly with a main scale division. From the zoomed view, the 4th vernier division matches.

Step3: Calculate vernier scale contribution

Vernier scale reading (VSR) = Least Count (LC) × coinciding division.
$\text{VSR} = 0.01\ \text{cm} \times 4 = 0.04\ \text{cm}$

Step4: Compute total measurement

Total reading = MSR + VSR
$\text{Total Reading} = 2.1\ \text{cm} + 0.04\ \text{cm}$

Answer:

$2.14\ \text{cm}$