2021 PHYSICS EN Sugg. answers.pdf - Foxit PDF Reader 9 - - X . . . File Home Comment View Form Protect Foxit eSign Share Help Tell me... Q Find TI & Hand Select SnapShot Clipboard Zoom Page Fit Reflow Rotate Typewriter Highlight Link Bookmark File Image Audio Option View Attachment Annotation & Video Reduce the file size Start 2021 PHYSICS EN Sugg. ... X LUNVI LAND VVALAURLAIL LUCI - buyyooLOU UVIULIVIIS W Solution to Question 2, Part A Waves A: Knowledge and Comprehension; B: Application; C: Analysis and Evaluation; W: Written Communication A B C WE e) (2 ( n + 1) + 1v (2n +1) v 1.1 Q2A-ev 2 3 Af = 4L 4L (2. n+1). v (2. n+1). v fn:= 2v V 4.1 4. 1 = 4L 2L (2. (n+1)+1)- v (2. n+3). v fn1:= 4. 1 4.1 V fn1-fn 2. 1 . . . . . . . . - . . . . f) With the formula given in e) we get *Q2A-fv 1 1 N 1.1 Af = V V L= m 343. 2L 2 Af v=343. m. s _ . 343.. m S S - > >> 65 O