Tried your solution 1 & 2 and both worked for me.
Worked for me.
There could be three solutions to your problem:
a) Suggested by mandeep.
b) You can use this visible expression in text field, (radiobutton.value === null ? true : (radibutton.value == "1")) . Assuming you have no default value set.
c) Set a default value for the radio button.
Can you try radiobutton.value != 0 ?? (supposing 0=No )