Statement (A): The energy of an electromagnetic radiation depends on temperature of the
medium through which it can travel.
Statement (B): The energy of an electromagnetic radiation depends on amplitude.
Statement (C): The energy of electromagnetic radiation depends on the wavelength.
magnetic radiation
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Explanation:
- The frequency, wavelength and time period can all vary according to the wave producing source. But, the velocity of an electromagnetic wave depends upon the medium through which it is travelling.
- A wave’s energy is proportional to its amplitude squared (E² or B²). This is true for waves on guitar strings, for water waves, and for sound waves, where amplitude is proportional to pressure. In electromagnetic waves, the amplitude is the maximum field strength of the electric and magnetic fields.
- The energy associated with EM radiation is proportional to frequency and inversely proportional to wavelength. Thus, EM waves with shorter wavelengths have more energy.
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