IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: spiderman on December 02, 2009, 02:28:58 pm

Title: physics doubt!!!!
Post by: spiderman on December 02, 2009, 02:28:58 pm

Hey guys.....pls cud ul help me wit this sum............its urgent cus ie got m test tomorrow..... :)
i donno how to solve q. 5 part 2n the attached pst paper.....
pls help mee as quickly as possible..........

Title: Re: physics doubt!!!!
Post by: astarmathsandphysics on December 02, 2009, 02:46:58 pm

One mo

Title: Re: physics doubt!!!!
Post by: astarmathsandphysics on December 02, 2009, 02:55:09 pm

The two sources must be equal in intensity and out of phase by 180 when the waves arrive at M.

Title: Re: physics doubt!!!!
Post by: spiderman on December 02, 2009, 02:59:22 pm

Thanks a lot astar but can u pls show the working......on how to get the minima

Title: Re: physics doubt!!!!
Post by: astarmathsandphysics on December 02, 2009, 03:11:07 pm

I just read the question properly. Both sources are always in phase so have some same frequancy and wavellenth.

S2M-S1M=n*wavelength and and M must always be at a minimum for both sources.