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Should i post the photo of the page of that book in which all of this stuff is explained in very detail ...but it will confuse you a lot ... :/I understood that why brightness is increasing..!! But tell me why less fringes are formed...!!
From this site above every year marking scheme , you will find it written as " er " just like " ms " for marking scheme
thx a tons!!!
My pleasure
When the photons colide with the electrons in the ground state, the electrons gain energy and they move to a higher energy level. The lifetime of the electrons in the higher energy level is less, so the electrons de-excite and releasing the energy in the form of photons. The energy of these photons is equal to the difference in the energy levels. Each atom has discrete energy levels so easch transition corresponds to different frequencies and wavwlengths.
ah u saved the day brother peace
my apologiessister to be more precise.
Hiii im not sure if anyone has asked this b4 but how do u do question 1c) cos i dont understand the mark scheme... 9702_s03_qp_4.pdf. http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s03_qp_4.pdf
Thxxx
thankkss. but for ii) why do i have t find the energy? what is m∆φ?
thankkss. but for ii) why do i have t find the energy? what is m∆φ?
well gravitational potential is the work done per unit mass in bringing mass from infinity to that point unit mass means kilogram so u need to find energy as u might know that energy is conserved so we equate and find the velocity and thats the way it isthankkss. but for ii) why do i have t find the energy? what is m∆φ?
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