The mains supply in India has a frequency of

PHYSICS · Single correct · CBSE · Physics · Oscillations · Oscillations

Problem

50\,\text{Hz}

. How much time is required to complete

25

cycles of this supply? (a)

0.02\,\text{s}

(b)

0.05\,\text{s}

(c)

0.5\,\text{s}

(d)

0.25\,\text{s}