ఒక ప్రతిధ్వని 2 సెకన్లలో తిరిగి వచ్చింది. ధ్వని యొక్క వేగం 342 మీసె-1 గా ఉన్న కారణంగా, మూలం నుంచి పరావర్తన ఉపరితలం యొక్క దూరం ఎంత?

  1. 342 మీ
  2. 648 మీ
  3. 171 మీ
  4. 85.5 మీ

Answer (Detailed Solution Below)

Option 1 : 342 మీ
Free
RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

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ధ్వని వేగం = 342 మీ/సె.

ప్రతిధ్వని వినడానికి పట్టే సమయం = 2సె.

ప్రయాణించిన దూరం = 2d = v × t

2 × d = 342 × 2

d = (342 × 2)/2

342 మీ

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