WHICH OF THE FOLLOWING IS DECIDABLE?
1.WHEATHER AN ARBITRARY TURING MACHINE PRINTS SOME NON BLANK CHARACTER
2.WHEATHER A TURING MACHINE PRINTS A SPECIFIC CHARACTER
3.THE SET OF CODES FOR TURING MACHINE THAT NEVER MAKE A LEFT MOVE.
4. WHEATHER T.M EVER MOVES ITS HEAD TO THE LEFT WHEN STARTED WITH INPUT W.
5.WHEATHER T.M EVER REACHES STATE Q WHEN STARTED WITH INPUT W FROM ITS INITIAL STATE
6.T.M VISITS STATE Q ON SOME INPUT WITHIN 10 STEPS.
7.