Find the square root of 0.00324 .

Correct option is D

Given
The number is 0.0324 
Solution
​$$0.0324 = \frac{324}{10000}$$​​
​$$\sqrt{324} = 18$$​​
​$$\sqrt{10000} = 100$$​​
Now, divide the results:
​$$\frac{18}{100} = 0.18$$​​
Final Answer
So the correct answer is (d)