Why is it impossible to generate radio waves with a frequency of ...

[student77]

Why is it impossible to generate radio waves with a frequency of 4  1014 Hz?

Question 2

A metal wire has a resistance of 10.0 V at a temperature of 20.0C. If the same wire has a resistance of 10.6 V at 90.0C, what is the resistance of this wire when its temperature is 220.0C?
  1.0.700 V
  2.9.66 V
  3.10.3 V
  4.13.8 V
  5.6.59 V

[voltaire123]

Answer to Question 1

An LC circuit cannot be made small enough for this frequency.

Answer to Question 2

2

[student77]

Excellent

[Missbam101]

Thanks for the timely response, appreciate it