Recent content by murshiddreamengineer

  1. murshiddreamengineer

    Struggling to understand the concept of this question (ice cube in water optics question)

    yes
  2. murshiddreamengineer

    Struggling to understand the concept of this question (ice cube in water optics question)

    Yes, I misunderstood the question; he has to look at the ice from the air to the water. They did not provide a diagram; I uploaded the one I had understood earlier. Sorry for the confusion. It is a multiple-choice question. there is an answer with 9 cm.
  3. murshiddreamengineer

    Struggling to understand the concept of this question (ice cube in water optics question)

    I got it. Thanks.
  4. murshiddreamengineer

    Struggling to understand the concept of this question (ice cube in water optics question)

    I do not understand what you mean by "viewed from the other side"
  5. murshiddreamengineer

    Struggling to understand the concept of this question (ice cube in water optics question)

    Even if we assume he is wearing goggles. How does the apparent height depend on the height of ice cuboid immersed in the water
  6. murshiddreamengineer

    Struggling to understand the concept of this question (ice cube in water optics question)

    Actually, it is a cuboid.
  7. murshiddreamengineer

    Struggling to understand the concept of this question (ice cube in water optics question)

    yes, he is in the water and look the ice cube
  8. murshiddreamengineer

    Struggling to understand the concept of this question (ice cube in water optics question)

    I'm sorry, the question says that the ice cube is partially immersed (floating). I mistakenly say immersed
  9. murshiddreamengineer

    Struggling to understand the concept of this question (ice cube in water optics question)

    TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height...
  10. murshiddreamengineer

    I Proof of Lorentz transformation

    What are the supporting arguments for the assumption that space and time are homogeneous?
  11. murshiddreamengineer

    I How can we prove the kinetic energy equation

    Thank you. I forgot to think that.
  12. murshiddreamengineer

    I How can we prove the kinetic energy equation

    Proof of kinetic energy work done equals a change in kinetic energy in a mechanical system. δW = F.ds W = ∫F.ds W = m∫a.ds W = m∫(dv/dt).ds W = m∫v.dv here if v and dv are in the same direction the change in kinetic energy will be the usual equation. what happens if both are in different...