Question

A distance of about 50 cm is measured using a metre stick having mm division. The percentage error is:(A) 0.2 % (B) 0.4%(C) 0.02% (D) 0.002%

Answer 1

See this image

It might help you

Answer 2

Answer:

Percentage error = 0.2%

Explanation:

We have been given that

distance is 50 cm

Now

We know that

1 cm =  10 mm

50 cm = 500 mm

therefore we know that

$\textrm{Percentage\ error}=\dfrac{Least\ count \times 100}{Distance\ measured}$

$\textrm{Percentage\ error} =\dfrac{1\times100}{500}$

A distance of about 50 cm is measured using a meter stick having mm division will have Percentage error = 0.2%