Question

what is the difference between Hf and HF

How many elements are present in HF and Hf​

Answer 1

Answer:

• HF operates at a higher frequency range than HF, usually between 30-300 MHz. These transmissions, due to their higher frequency, penetrate through the Ionosphere, with little or no refraction. VHF propagation is 'line of sight' in nature and so is restricted to shorter-range communications.
• Hafnium (Hf), chemical element (atomic number 72), metal of Group 4 (IVb) of the periodic table.

Answer 2

Answer:

Explanation:

HF operates at a higher frequency range than HF, usually between 30-300 MHz. These transmissions, due to their higher frequency, penetrate through the Ionosphere, with little or no refraction. VHF propagation is 'line of sight' in nature and so is restricted to shorter-range communications.

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