Assertion (A): An instruction cycle consists of fetch and execute cycles.

Reason (R): Fetch cycle has one machine cycle but execute cycle may have one or more machine cycles depending on length of instruction.

Match the following:

Match the following:

1. N type semiconductor with work function φ_s more than work function φ_M of metal
2. N type semiconductor with work function φ_s less than work function φ_M of metal
3. P type semiconductor with work function φ_s more than work function φ_M of metal
4. P type semiconductor with work function φ_s less than work function φ_M of metal.