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(A) Mechanical waves Column II
(B) Pulse
(1) Disturbance for short time
(2) Independent of amplitude of vibrations
(C) Velocity of sound in air (3) SONAR
(D) Tracking of fish in ocean (4) Require a material medium
(a) (A) \( \rightarrow \) (3); (B) \( \rightarrow \) (4); (C) \( \rightarrow \) (1); (D) \( \rightarrow \) (2)
(b) (A) \( \rightarrow \) (1);(B) \( \rightarrow \) (2);(C) \( \rightarrow \) (3);(D) \( \rightarrow \) (4)
(c) (A) \( \rightarrow \) (4) ; (B) \( \rightarrow \) (1); (C) \( \rightarrow \) (2); (D) \( \rightarrow \) (3)
(d) (A) \( \rightarrow(3) \); (B) \( \rightarrow(4) ; \) (C) \( \rightarrow(2) \); (D) \( \rightarrow(2) \)
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