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Ask iit jee aieee pet cbse icse state board experts Expert Question: circular motion
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[Post New]29 Jun 2007 19:42:39 IST
    Subject: circular motion
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swapi (0)

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Q.the hour hand and the minute hand of a clock coincide at every relative periodic timeis-
a]11/12       b]12/11       c]11/16        d]12/24

    
[Post New]29 Jun 2007 19:55:39 IST
    Subject: circular motion
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c'mmon .....reply me please

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[Post New]29 Jun 2007 20:52:59 IST
    Subject: Re:circular motion
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siddharthparmar_db (0)

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d
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[Post New]29 Jun 2007 23:19:13 IST
    Subject: circular motion
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the answer given is b

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[Post New]30 Jun 2007 07:17:50 IST
    Subject: circular motion
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please anyone there, help me to solve this problem....

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[Post New]30 Jun 2007 12:03:12 IST
    Subject: circular motion
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krishna.gopal (2322)

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speed of minute hand is 2*pi rad per hour
speed of hour hand is pi/6 rad per hour
Let they concide after t hrs
So t*(2pi-pi/6) = 2pi
or t = 12/11 hrs
Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi
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