AP Police SI practice question
A sound wave has a frequency of 1600 Hz. If the wavelength of the wave is 0.2 m, what will be the speed of the wave?
From a AP Police SI Science practice set · Science
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Correct answer: (B) 320 m/s
Speed = frequency times wavelength = 1600 times 0.2 = 320 m/s.
हिंदी में प्रश्न
एक ध्वनि तरंग की आवृत्ति 1600 Hz है। यदि तरंग की तरंगदैर्घ्य 0.2 m है, तो तरंग की चाल कितनी होगी?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 320 m/s
वेग = आवृत्ति × तरंगदैर्ध्य = 1600 × 0.2 = 320 m/s।
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