Mechanics - WAVES.....

1

voldy ·2009-02-08 08:28:10

try to learn hindi da. really helps . ;)

JEE ke saath saath hindi bhi padna hai
alongwith JEE you've gotto study hindi also

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21

tapanmast Vora ·2009-02-11 02:34:23

OH K!!!!

GR8!!! THNX MAN!!!!

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39

Dr.House ·2009-02-11 02:00:04

in general we have if v1 is the velocity of incident wave and v2 is the velocity of the transmitted wave,and A is the amplitude of the incident wave, then

the amplitude of the transmitted wave is given by

A_t=(2v2/v1+v2)A

its a general formula and can be used anywhere.

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tapanmast Vora ·2009-02-11 01:44:54

hey mathe matician can u pl xplain da foll.

(2v2/v1+v2)A =2/3A.

is it a generalised formula or sumthing........

othtrwise gr8 soln... thnx .....

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39

Dr.House ·2009-02-11 00:43:26

let v1 be the velocity in string 1 and v2 be the velocity in string 2. as tensions r same, then v is inversely proportional to âˆšÎ¼. we get v1=2v2.

now let A be the amplitude of the iincident wave, then the amplitude of the transmitted wave is given by (2v2/v1+v2)A =2/3A.

as energy is directly proportional to A² and other parameters are constant, we get fraction of incident energy is 4/9.

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21

tapanmast Vora ·2009-02-09 21:50:48

oh this post keeps getting bigger by my posts only ..... [2] [2]

Is ther no one here to solv this un??????? [7] [7] [7] [7]

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21

tapanmast Vora ·2009-02-09 09:01:23

KOI NAHI???

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21

tapanmast Vora ·2009-02-09 00:59:38

sum1 reply......

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tapanmast Vora ·2009-02-08 09:05:44

HELP!!!!!!!1

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3

msp ·2009-02-08 08:29:14

yes i am studying hindi

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21

tapanmast Vora ·2009-02-08 07:51:54

NO1 TRYIN??????

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tapanmast Vora ·2009-02-08 08:23:34

THE SAME FORMULA U TOLD.......

BUT NOT GETTIN 4/9.........

@SANKARA : OH K I'LL WRITE KUM HINDI LOL.... [1]

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1

Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-02-08 08:20:26

tapan wich method u used??

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3

msp ·2009-02-08 08:20:01

i cant understand hindi da.

please post ur replies in English

please
please
please
please
please
please
please
please
please
please
please
please
please
please
please

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Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-02-08 08:18:20

waise bhi hoga kya:O meine woh soocha ni .......

yeh boards jaan le re hai :(

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3

msp ·2009-02-08 08:16:00

can u give hint integrations.

how much of the wave will get reflected and how much of the wave will get transmitted

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1

Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-02-08 08:08:13

dunno...........nt feelin like doin.......
i guess wnt get d results .....

sorry sorry sorry sorry....

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Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-02-08 08:00:21

khud kar liyo paper lana padega :P

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21

tapanmast Vora ·2009-02-08 07:57:52

ANS IS 4/9..........

GETTIN???

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Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-02-08 07:56:16

power=enrgy/time=2(pi)^2*Î¼*v*f^2
f=frequncy

isse aana chahiye

sorry if dats wrng
aaj kal boards karke dimag mein junk ho gya hai

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