Speed from a Snapshot
Difficulty: Easy · Topics: Waves, Wave Speed, Standing Waves
Bir onlik suratdan tezlik
The figure shows a transverse wave travelling along the x-axis at one instant. What is the wave's speed if its period is 0.2 s?
physics "view":[-0.9,-1.2,9.4,1.35],"alt":"A transverse wave along x with amplitude 4 cm; the distance from the start to the first crossing after the crest is 5 cm.","items":["type":"arrow","from":[0,0],"to":[9.0,0],"colour":"ink","width":2,"head":10,"type":"label","at":[9.15,0],"text":"x","anchor":"e","size":15,"math":true,"type":"line","from":[0,-1.0],"to":[0,1.0],"width":2,"type":"polyline","points":"sample":"x","from":0,"to":7.8,"n":97,"at":["=x","=Y0 + A sin(2 pi (x/lam - tau))"],"width":2,"colour":"positive","type":"line","from":[-0.2,0.8],"to":[0.6,0.8],"dash":"2 2","width":1,"type":"dim","from":[-0.3,0],"to":[-0.3,0.8],"label":"4 cm","upright":true,"anchor":"w","type":"line","from":[1.5,0],"to":[1.5,-0.95],"dash":"2 2","width":1,"type":"dim","from":[0,-0.75],"to":[1.5,-0.75],"label":"5 cm","upright":true,"anchor":"s","type":"ball","at":[3.75,"=Y0 + A sin(2 pi (3.75/lam - tau))"],"r":0.13,"fill":"amber"],"params":["id":"tau","label":"t","min":0,"max":2,"step":0.01,"value":0,"unit":"T","animate":6],"let":"lam":"3.0","A":"0.8","Y0":"0.0"
Rasmda x o‘qi bo‘ylab tarqalayotgan ko‘ndalang to‘lqinning bir onlik holati ko‘rsatilgan. Agar davri 0.2 s bo‘lsa, to‘lqin tezligi nimaga teng?
physics "view":[-0.9,-1.2,9.4,1.35],"alt":"A transverse wave along x with amplitude 4 cm; the distance from the start to the first crossing after the crest is 5 cm.","items":["type":"arrow","from":[0,0],"to":[9.0,0],"colour":"ink","width":2,"head":10,"type":"label","at":[9.15,0],"text":"x","anchor":"e","size":15,"math":true,"type":"line","from":[0,-1.0],"to":[0,1.0],"width":2,"type":"polyline","points":"sample":"x","from":0,"to":7.8,"n":97,"at":["=x","=Y0 + A sin(2 pi (x/lam - tau))"],"width":2,"colour":"positive","type":"line","from":[-0.2,0.8],"to":[0.6,0.8],"dash":"2 2","width":1,"type":"dim","from":[-0.3,0],"to":[-0.3,0.8],"label":"4 cm","upright":true,"anchor":"w","type":"line","from":[1.5,0],"to":[1.5,-0.95],"dash":"2 2","width":1,"type":"dim","from":[0,-0.75],"to":[1.5,-0.75],"label":"5 cm","upright":true,"anchor":"s","type":"ball","at":[3.75,"=Y0 + A sin(2 pi (3.75/lam - tau))"],"r":0.13,"fill":"amber"],"params":["id":"tau","label":"t","min":0,"max":2,"step":0.01,"value":0,"unit":"T","animate":6],"let":"lam":"3.0","A":"0.8","Y0":"0.0"