Related Questions

  1. Light with an energy flux of 25×10⁴ Wm⁻² falls on a perfectly reflecting surface
  2. The heart of a man pumps 5 litres of blood through the arteries per minute at
  3. If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
  4. A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire
  5. A point source is kept at a distnace 1000m has an illumination I. To change the illumination