Which of the following statement is/are true?
Statement (S1): Conductivity of silicon is less than that of germanium at room temperature (300 K)
Statement (S2): As the temperature increases, the Fermi level of both N-type and P-type semiconductor materials moves towards the centre of the forbidden energy band gap.1
Both S1 and S2
2
Neither S1 nor S2
3
S1
4
S2