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The tension in a piano wire is 10 N. What should be the tension in the wire to produce a note of double the frequency?
Options
(a) 5 N
(b) 20 N
(c) 40 N
(d) 80 N
Correct Answer:
40 N
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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- Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV.
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Topics: Waves
(80)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following statements is not correct in case of a semiconductor?
- Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV.
- If the nucleus ²⁷₁₃Al has nuclear radius of about 3.6 fm
- The direction of magnetic line of force of a bar magnet is
- The work function for metals A,B abd C are respectively 1.92 eV,2.0 eV and 5 eV.
Topics: Waves (80)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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