I have created a radio group in my LWC component name rekogGroup and I assigned an option for that radio group in js. Now I need an idea to pass my LWC - radio group selected value from LWC to Flow.
Here is my code: 
html: 
<lightning-radio-group name="rekogGroup"
                              label="Select the correct plate number:"
                              options={rekogOptions}
                              value={detailSelected}
                              required
                              onchange={handleValueChange}
                              type="button"></lightning-radio-group>
I need to pass this rekogGroup -selected value in lightning Flow and set that as the license plate disk
This there any idea please help me!! Thanks all.

In screen flows, I have two fields in account like reading 1 and reading 2, The requirement is that they can enter either reading 1 or reading 2 but not both Value and must be greater than zero “0” . I want vaidation on the screen flow. Plase help me to sort this