ध्वनी लहरीची वारंवारता 50 हर्ट्झ आहे आणि त्याची तरंगलांबी 4 मी आहे. 3 सेकंद मध्ये ध्वनी लहरीने प्रवास केलेले अंतर किती आहे?

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

Answer (Detailed Solution Below)

Option 2 : 600 मी
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योग्य उत्तर  600 मी हे आहे.

दिलेले:

  • वारंवारता= 50 Hz,
  • तरंगलांबी= 4 m.

 

जर , लहरींची तरंगलांबी = वारंवारता × तरंगलांबी

= 50 × 4

= 200 m/s.
ध्वनी लहरीने 3 सेकंद मध्ये प्रवास केलेले अंतर :

 200 × 3

= 600 m.

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