Find the circular value of an angle formed by the end point of hour of a clock in 1 hour rotation.

Explanation

In 1 hour rotation the hour hand of a clock rotates `(360^(@))/(12)=30^(@)`
`[therefore "12 hour rotates" 360^(@)]`
=`30^(@)xx(pi)/(180^(@))=(pi)/(6)`
Hence the required circular value `=(pi)/(6)`.