7. 1fp isa prime, then t(p) is cqual to: (a) 0 (b) 1 (c) 2 (d) none of these 8 ifp is a prime, then o (p) is equal to: (a)p (b) p+1 (c) ptl (d) none of these 9.

7. 1fp isa prime, then t(p) is cqual to: (A) 0 (B) 1 (C) 2 (D) None of these 8 Ifp is a prime, then o (p) is equal to: (A)P (B) p+1 (C) ptl (D) None of these 9. Behaviour of t (n) is (A) regular (B) iregular (C) asymptotic (D) None of these 10. According to Gauss theorem if a and n>0 are integers such that (a, n)-1, then am)is cqual to : (A) 1 (mod n) (B)-1 (mod n) (C) (mod n) (D) None of these 11. 1fpis a prime and k>0, then o(p) is equal to (A) p (B) p-1 (D) None of these C)p-pt-1 12. For n> 2, () is: (B) Even number (A) Prime number (D) None of these (C) Odd number 13. (13) is: (B) 13 (A) 12 D) None of these (C) 14