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  1. Which of the following is an example of ideal black body?
  2. The escape velocity from the earth’s surface is 11 kms⁻¹.A certain planet
  3. A carnot engine working between 300 K and 600 K has a work output of 800J per cycle.
  4. A galvanometer has a coil of resistance 100 ohm and gives a full-scale deflection
  5. The magnetic susceptibility does not depend upon the temperature in