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प्रश्न
The heart of a man beats 75 times a minute. What is its (a) frequency and (b) time period?
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उत्तर
Given, heart beats 75 times a minute
(a) Frequency = No. of times heart beats in 1 s
Or, = 75/60 = 1.25 s-1
(b) Time period, T = 1/
Or, T = 1 / 1.25 = 0.8 s
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संबंधित प्रश्न
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
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