Clear selected dropdown values if the selection of radio button changes

I have a radio button selection and a dropdown selection.
The values are listed in the dropdown based on the radio button selection.
i.e: If i select a different radio button, different values are listed in the dropdown.

Suppose i select a value from the dropdown, and now change the radio button selection, the selected value is still present.
Is there a way to clear the selected value which is based on the previous radio button selection when a different radio button is selected ?