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{:( "Column A"," ColumnB"),(A."Vibratory...

`{:( "Column A"," ColumnB"),(A."Vibratory motion", a."Distance-time graph is not a straight line"),(B."Rotatory motion",b."speed"xx"time"),(C."seconds travelled",c."musical instruments"),(D."Distance travelled", d."the rate of change of motion in specific direction"),(E."Variable speed",e."Potter'swheel"),(F."Velocity",f.2s):}`

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The correct Answer is:
A, B, C, D
A-c= Musical instruments produce sound due to vibratiory motion of air molecules or strings.
B-e Potter's wheel undergoes rotatory motion.
C-f The time period of a second pendulum is 2s.
D-b= we know speed = `("Distance travelled")/(" Time taken")` Distance travelled = speed `xx` time taken .
E-a the distance,- time graph of a body moving with varible speed is not a staight line.
F-d The rate of change in motion in a specific direaction is called velocity.
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