Question

what is frequency for 20 oscillation per 5 minutes​

Answer 1

Answer:

What is the frequency of an object if it vibrates 20 times in 20 seconds?

Answer. therefore Frequency = 20 oscillations per second = 20 hz.

Answer 2

GIVEN :

• Number of oscillation = 20
• Time = 5 minutes

TO FIND :

• Frequency = ?

SOLUTION :

● 1 minute = 60 seconds

⇒ 5 minutes = 5 × 60 seconds

⇒ 5 minutes = 300 seconds

● $\textbf{Frequency = \dfrac{\textbf {Number of oscillations}}{\textbf{Time}} }$

⇒ Frequency = $\sf \dfrac{20}{300}$

⇒ Frequency = 0.6667

⇒ Frequency = 0.67 Hz

∴ Freqency ≈ 0.67 Hz