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NEET2015PhysicsElectromagnetic WavesActual

The temperature of an object that emits electromagnetic radiation must be

Options

  1. Ahigher than 0^ C
  2. Bhigher than 0 ~K
  3. Chigher than that of its surroundings
  4. Dhigh enough for it to glow

Correct answer

B. higher than 0 ~K

Step-by-step solution

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