Correct Answer: Option B

Explanation

Generally, period T = 1/f(reciprocal of frequency).
=> f = 1/T
And from the diagram, period T = 4s
∴ frequency, f = 1/T = 1/4 = 0.25 Hz

There is an explanation video available below.

• what is the fluid in the eye calles? Answer this

  1 Answers   ·   Biological Science   ·   11 minutes ago
• which school is the richest school in Nigeria? Answer this

  1 Answers   ·   22 hours ago
• how does post utme looks like and what are the subjects required for a medical student? Answer this

  1 Answers   ·   22 hours ago