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A top makes 16 rotations about its own axis within 0.4 seconds, its frequency is:
  • a)
    40 Hz
  • b)
    4 Hz
  • c)
    0.4 Hz
  • d)
    400 Hz
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A top makes 16 rotations about its own axis within 0.4 seconds, its fr...
Frequency of a Top's Rotation

Definition of Frequency:
Frequency is defined as the number of oscillations or cycles per unit time.

Calculating Frequency:
To calculate frequency, we use the formula:

frequency = number of cycles/time taken

In this case, the top makes 16 rotations in 0.4 seconds. Therefore, the frequency of the top is:

frequency = 16/0.4 = 40 Hz

Thus, the correct answer is option A, which is 40 Hz.
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Community Answer
A top makes 16 rotations about its own axis within 0.4 seconds, its fr...
Frequency is the number of cycles or vibrations undergone during one unit of time by a body in periodic motion.


so,
GIVEN HERE
• Rotation or Cycle done = 16
• Time taken = 0.4 seconds

So,
~ 0.4 sec = 16 cycle
~ 1 sec = ( 16 ÷ 0.4 ) = 40

So,
Frequency = 40 Hz



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