Question

An object completes 1500 vibrations in 30s. Find its
(a) Frequency
(b) Time Period​

Answer 1

Explanation:

Time period= 1500/3

= 500 s

frequency= 1/500

= 0.002 hz

Answer 2

Answer:

• (a). Frequency = 50 Hz
• (b). Time Period = 0.02 s

Step-by-step explanation:

Given:

• An object completes 1500 vibrations in 30s.

To Find:

• (a) Frequency
• (b) Time Period

Solution:

• Number of vibrations in 30s = 1500
• Number of vibrations in 1s = 1500/30
• Number of vibrations in 1s = 150/3
• Number of vibrations in 1s = 50 Hz

After that,

• Time taken for 1500 vibrations = 30s
• Time taken for 1 vibration = 30/1500
• Time taken for 1 vibration = 3/150
• Time taken for 1 vibration = 0.02 s

Alternative method,

• Time period = 1/frequency
• Time period = 1/50
• Time period = 0.02 s

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