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  1. S

    Physics P-22 GT.

    Dude 4 is in the denominator and not the numerator...so the simplest ratio will be 1 : 1/4. Whaat? I didn't get two same answers for the energy question! I got around 76 J for change in kinetic energy a d that was my last answer :/
  2. S

    Physics P-22 GT.

    Or take it as common :p why were there 2 90J in q3??
  3. S

    Physics P-22 GT.

    Why did u get 2 90s for the third question?
  4. S

    Physics P-22 GT.

    Divide that by F/d^2...you end up with 1 and 1/4 and not the other way round
  5. S

    Physics P-22 GT.

    Yeah that's what I meant but they were comparing the wavelengths not their laser-nature cause if didn't say anywhere that the red light wasnt to be a laser..okay let's stop and discuss possible mcq questions instead!
  6. S

    Physics P-22 GT.

    The wavelength of Red light is 7x10^-7 and the wavelength of the laser was 450x10-7 so yeah it indirectly stated the difference in wavelengths
  7. S

    Physics P-22 GT.

    Yup and I wrote that the angle at which the fur he's are formed will be greater. The angle has nothing to do with the wavelength, sintheta is just directly proportional to it. I dunno what you're saying btw
  8. S

    Physics P-22 GT.

    It means that they're farther away from the oth order of maximum...the questions were about the wavelengths of light? Cause I've seen questions about the changes in slit separation, width of slit, distance from screen but just once about the change in wavelength, and they mentioned the angle...
  9. S

    Physics P-22 GT.

    Extension is proportional to the cross sectional area and not the diameter. So cross sectional areas were pi(d/2)^2 and pi d^2 or pi d^2/4 and pid2...hence the stress and strain were both the same ie 1 : 1/4
  10. S

    Chemistry and physics mcqs

    Oh so if it said the same number of molecules as one mole if hydrogen gas it would've been correct too! Post some questions!
  11. S

    Physics P-22 GT.

    So how is writing that they are formed at a greater angle not acceotable?
  12. S

    Chemistry: Post your doubts here!

    Guys post your paper 1 doubts here : https://www.xtremepapers.com/community/threads/chemistry-and-physics-mcqs.33811/
  13. S

    Physics P-22 GT.

    What did the question say? That we had to give in terms of brightness and the number of fringes? Are you sure it said that O.o
  14. S

    Physics P-22 GT.

    It was in a marking scheme when they were comparing blue and red lights so I dunno, but in that question they we had to use the equation dsintheta= nlambda to find d
  15. S

    Physics P-22 GT.

    Yeah shouldn't R be less than the bet force? I wish I could remember what I wrote
  16. S

    Physics P-22 GT.

    Oh wow I don't remember anything :o P was VI right? And what if I wrote that the angle at which the Maximas and minimas are formed increases when the red light is used, according to dsinA= nlambda?
  17. S

    Chemistry and physics mcqs

    Nope A. I think 12C has one mole of particles..so 1/12 of that would have 1/12th if one mole. I don't get why it's A cause hydrogen doesn't exist as atoms so shouldn't it be one mole of hydrogen gas?
  18. S

    Physics P-22 GT.

    If it makes u feel better I actually wrote 1:1 for strain even tho I knew it was the wrong answer. I didn't have time to think about it and I thought I could sacrifice 2 marks for 58. It was only after giving it that I thought about that question and realized that the you g modulus is a material...
  19. S

    Physics P-22 GT.

    Guys post questions to https://www.xtremepapers.com/community/threads/chemistry-and-physics-mcqs.33811/#post-788220 We can still compensate for our loss of marks in p2 by gaining them in p1...so we gotta start practicing from now cause both chem and physics are he'll tricky and we have only an...
  20. S

    Physics P-22 GT.

    Haha I meant 1 : 1/4..dunno if they accept fractions
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