ధ్వని తరంగం యొక్క పౌనఃపుణ్యం 50 Hz మరియు దాని తరంగదైర్ఘ్యం 4 మీ. 3 సెకన్లలో ధ్వని తరంగం ప్రయాణించే దూరం ఎంత?

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RRB JE ME CBT 2 Previous Paper 1: Held on 29 Aug 2019
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  1. 100 మీ 
  2. 600 మీ
  3. 200 మీ 
  4. 300 మీ

Answer (Detailed Solution Below)

Option 2 : 600 మీ
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సరైన సమాధానం 600 మీ.

ఇక్కడ ఇవ్వబడింది:

పౌనఃపుణ్యం = 50 Hz,
తరంగదైర్ఘ్యం = 4 మీ.
కాబట్టి, తరంగ వేగం = పౌనఃపుణ్యం × తరంగదైర్ఘ్యం

= 50 × 4

= 200 మీ/సె.కాబట్టి ధ్వని తరంగం 3 సెకన్లలో ప్రయాణించే దూరం:

 200 × 3

= 600 మీ.

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