PHYSICS 10 SCIENCE · 2026–27 · E · Worked numericals · QUESTION 13.2 · EM p. 61

A clock chimes 48 times in 1 minute. Calculate the event frequency and period.

گھڑی ایک منٹ میں48 بار بجتی ہے۔ تعدد اور دورانیہ نکالیں۔

Solution & explanation

  1. Given: 48 events in 1 minute.

  2. Convert one minute to seconds.

    t=60
  3. Frequency is event count divided by total time.

    f=4860=0.8
  4. Period is the reciprocal of frequency.

    T=1f
  5. Substitute and divide.

    T=10.8=1.25
  6. State the result with units: f = 0.8 Hz; T = 1.25 s.

  7. This is the repetition frequency of chimes, not the audio pitch of each chime.

f = 0.8 Hz; T = 1.25 s

Independent study answer. Original textbook ↗ · English-medium printed page 61.