Yes Bitcoin do exist in physical form. You may dont know that IN US 500+ ATMs were installed for BTC - Bitcoin and in Israel capital there are 2 ATMS in which it is reported that 1 is working while other is malfunctioned so it undergoing some correction.
So, if youre thinking that BTC-Bitcoin is just a virtual currency then update yourself. Keep in mind that yet no country has given Bitcoin a legal tender (Currency) status.