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  1. A galvanometer of 50 Ω resistance has 25 divisions. A current of 4×10⁻⁴ A gives
  2. An alternating voltage given as, V=100√2 sin100t V is applied to a capacitor
  3. Maximum velocity of the photoelectrons emitted by a metal surface is 1.2×10⁶ ms⁻¹.
  4. The two ends of a metal rod are maintained at temperatures 100°C and 110°C.
  5. Perfectly black body radiates the energy 18 J/s at 300K. Another ordinary body of e=0.8