The Vividh Bharati station of All India Radio, Delhi, broadcasts on a frequency of 1,368 kHz (kilohertz). The wavelength of the electromagnetic radiation emitted by the transmitter and the part of the electromagnetic spectrum does it belong are :

The frequency of one photons is 5 × 10¹⁴ Hz. The energy of one mole of photons of radiation is :

1. 177.51 kJ mol^–1

2. 188.51 kJ mol^–1

3. 199.51 kJ mol^–1

4. 291.61 kJ mol^–1