$\"\"$

Circular ripple travels outward with a speed of $\"\"$ cm/sec.

(a)

Consider time taken by the circular ripple to travel a distance $\"\"$ is $\"\"$ sec.

Speed-distance relation :

$\"\"$

The distance traveled by the circular ripple is

$\"\"$

$\"\"$ .

$\"\"$

(b)

Find $\"\"$ .

Area of circle is $\"\"$ .

$\"\"$

$\"\"$ ( Since $\"\"$ )

$\"\"$

Area of circular ripple is $\"\"$ sqcm.

$\"\"$

(a) The distance traveled by the circular ripple is $\"\"$ .

(b) Area of circular ripple as the function of time $\"\"$ is $\"\"$ sqcm.