Question

1. A student measures the height of a small lamp to be 32cm. According to the factory specifications,

the lamp is actually 30cm. What is the percent error of the student's measurement?

Answer 1

6.67 %

Step-by-step explanation:

Given that,

Measured height of a small lamp, l = 32 cm

Actual height, l' = 30 cm

We need to find the percent error of the student's measurement. Percent error is given by :

`\%=(|l-l'|)/(l')* 100`

Putting all the values, we get :

`\%=(|32-30|)/(30)* 100\\\\\%=(2)/(30)* 100\\\\\%=6.67\%`

So, the percent error of the student's measurement is 6.67 %.