Which of the following is a correct statement?ans.All of the mentionedMealy machine has accepting statesWe can convert Mealy to Moore but not vice versaMoore machine has no accepting states Previous Marked for Review Next

The correct statement is "We can convert Mealy to Moore but not vice versa".

Here's why:

1. "All of the mentioned" is not correct because not all the statements mentioned are correct.

2. "Mealy machine has accepting states" is not correct. In the context of finite state machines, Mealy and Moore machines do not have 'accepting' states. Instead, they have 'output' states. The concept of 'accepting' states is used in automata theory, specifically in the context of deterministic finite automata (DFA) and nondeterministic finite automata (NFA).

3. "We can convert Mealy to Moore but not vice versa" is correct. It is possible to convert a Mealy machine to a Moore machine, but the reverse is not always possible. This is because a Mealy machine's output is determined by both its current state and the current input, while a Moore machine's output is determined only by its current state. Therefore, a Moore machine may not have enough information to mimic a specific Mealy machine.

4. "Moore machine has no accepting states" is similar to statement 2. Moore machines do not have 'accepting' states, they have 'output' states. So while the statement is technically true, it may be misleading if you're thinking in terms of 'accepting' and 'rejecting' states.