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GyanMul Prep · NEB +2 · Science · Grade 12

Physics (Science, Grade 12)

Everything on these tabs is Physics (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

GyanMul Prep · NEB +2 · Science · Grade 12

Physics (Science, Grade 12)

Everything on these tabs is Physics (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

Chapter 9 of 25 · Physics (Science, Grade 12)

Acoustic Phenomena

5 topics
Board exam — Wave and Optics, 15 marks across 8 chapters
23 solved questions

How a sound is described rather than propagated — intensity, loudness, pitch and quality — and the two interference effects a listener notices directly: beats, and the Doppler shift of a source that is moving.

Practise this chapter Read solved questions

Topics

What the syllabus defines for this chapter

1Intensity, loudness, pitch and quality of sound
2Intensity level and the decibel scale
3Beats and beat frequency
4Doppler effect: source moving, observer moving, and both
5Applications and limitations of the Doppler effect