MCQ Questions For Class 8 Science
Question. Ultrasonic waves are used in SONAR to(A) Detect the frequency of the waves(B) Detect the radio waves(C) Detect objects on sea bed(D) (A) and (C) both Question. Why are percussion instruments are widely used to keep beats in a musical composition?(A) Because range of frequencies and pitches produced by these instruments is very large(B) […]
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