Recent content by kryptic3k

  1. K

    Variations in Refractive Index of atmosphere with altitude ?

    Variations in Refractive Index of atmosphere with altitude ?? The queries i have are related to refraction of light. 1. How does the refractive index of air vary with the altitude ? If possible explain the reason for change. 2. Does the amplitude of a wave change during refraction?
  2. K

    Factors affecting the design of an efficient paddle wheel

    I don't think having a shroud will help. It will make the project even more complicated. It would be better to stick to calculations of power.
  3. K

    Factors affecting the design of an efficient paddle wheel

    So if we want to calculate input power do we derive force value from torque. Also what velocity do we consider. Should it be velocity with which water is pushed back. I hope someone clarifies this power and efficiency calculation.
  4. K

    Factors affecting the design of an efficient paddle wheel

    All the angular momentum might not be transformed into linear momentum. Since you are studying efficiency of paddle wheel out of curiosity I would like to know how to work out the efficiency percentage of paddle wheel. In many boat design forums they mention the efficiency in terms of...
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