Duration: 3:39

6 views

0

(A) Sound
Column II
(B) SONAR
(1) Frequency
(C) Reflection of sound (3) Finding depth of the sea
(D) Pitch
(4) Echo
(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) \( \rightarrow \) (3); (C) \( \rightarrow \) (1); (D) \( \rightarrow \) (2)
(d) \( \quad \) (A) \( \rightarrow(2) \); (B) \( \rightarrow(3) \); (C) \( \rightarrow \) (4); (D) \( \rightarrow \) (1)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live