Recent content by Prashasti

  1. Prashasti

    Sex linked diseases and lyonization in females

    Suppose, there's a disease "D", which is an X-linked, dominant disease. Now, there's a female who possesses the allele for this disease in one of her two X chromosomes. (XDX) It's easy to say that since the allele for the disease is dominant, she'll suffer from it. Now, it's a well known fact...
  2. Prashasti

    Course of the Optic Nerve

    We had a class on optic nerve today. Our teacher said that the optic nerve "originates" from the retina, and continues up till the commencement of the optic chiasma, and is, approximately, 4 cm long. My question is, Why is it considered to be a cranial nerve when it does not even originate...
  3. Prashasti

    Question related to molarity

    No. I'm in high school. So, I don't know much about that. What specific situations are you talking about? .
  4. Prashasti

    Question related to molarity

    Ammonia gas is passed into water, yielding a solution of density 0.93 g/cm^3 and containing 18.6% NH3 by weight. The mass of NH3 per cc of the solution is 1) 0.17 2) 0.51 3) 0.34 4) 0.68 I solved it using the molarity equation. Molarity = 10xd/MM where, x - % by weight d - density MM -...
  5. Prashasti

    Convex lenses

    Ahh! I got it! Power is inversely related to focal length. Now, because the combination is "more" converging (more power), its focal length will be less. :headbang: I think it's correct now. Thanks! :oldsmile:
  6. Prashasti

    Convex lenses

    Homework Statement A thin double convex lens of focal length f is broken down into two halves at the axis. The two haves are then combined, as shown in the figure. What will be the focal length for the arrangements...
  7. Prashasti

    Relative stability of ortho and para isomers

    Generally, in organic reactions, the para isomer is found to be more stable (as it is symmetrical) because of which it is produced in greater amount than the ortho isomer. However, there are some exceptions also, for example, in some reactions the less sterically hindered ortho isomer is...
  8. Prashasti

    Dipole in an external electric field

    The direction of the resultant of A x B is just opposite to that of B x A...
  9. Prashasti

    Dipole in an external electric field

    Homework Statement Why isn't the expression for torque on a dipole kept in an external electric field ExP? Why is it PxE? No such indication has been given in any of the derivations, that it is mandatory for it to be PxE, so why can't it be ExP? 2. The attempt at a solution Is it all about...
  10. Prashasti

    Kirchhoff's Loop Rule Problem.

    So, the mistake lies in that "assumption" itself. It messed everything up. Thanks a lot!
  11. Prashasti

    Kirchhoff's Loop Rule Problem.

    What would have happened if there was a question with the same circuit diagram and a cell with emf (E) 12 V was present there?
  12. Prashasti

    Kirchhoff's Loop Rule Problem.

    No. I added it myself..
  13. Prashasti

    Kirchhoff's Loop Rule Problem.

    No, only the portion of the figure between the points A and D has been given. But, I've assumed E > 3V.. So the current will pass according to the cell with emf 'E' only? Am I right?
  14. Prashasti

    Kirchhoff's Loop Rule Problem.

    Homework Statement Actually, the main question is to find out the potential difference between the points 'A' and 'D'. The cell with emf 'E' has not been shown in the main question, but I have assumed it to be connected between 'A' and 'D'. Each resistor is of 1 Ohm. 2. The attempt at a...
  15. Prashasti

    Amplitude Modulation of a wave

    They mentioned the result before deducing the expression for the same. I got it! Thanks!!
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