# Unit 2

Model Paper 2

Unit 2:

Q.1 Choice the correct option (A,B,C,D) ?

1. The numbers containing zero with natural numbers are called:

(a) Whole numbers

(b) Real numbers

(c) Rational numbers

(d) Irrational numbers

2. A non-terminating, non-recurring decimal represents:

(a) Natural number

(b) Rational number

(c) Irrational number

(d) Primer number

3. i9 = :

(a) 1       (b) 1-         (c) i         (d) i-

4. Real part of 2ab (i + i2) is:

(a) 2ab         (b) -2ab           (c) 2abi         (d) -2abi

5. Value of e is:

(a) 3.718         (b) 2.718           (c) 4.718           (d) 3.1428

6. Who gave the idea of logarithms?

(a) John Napier

(b) Henry Briggs

(c) Khwarizmi

(d) Jobst Burgi

7. log e = :

(a) 0         (b) 0.4343          (c) ∞           (d) 1

8. log mn =:

(a) (log m)n          (b) m log x          (c) n log m           (d) log(mn)

9. loga a = :

(a) a          (b) e           (c) 0          (d) 1

10. Scientific notation of 416.9 is:

(a) 4.169 102

(b) 0.4169 103

(c) 41.69 101

(d) 4169 10-1

Q. 2(Short Questions)

1.Define Recurring Decimal numbers.

2.What is scientific notation?

3.Express in ordinary notation 9.018 10-6

4.Find the common logarithm of 0.3206

5.If log 31.09 = 1.4926, then find the value of log 3.109 without using table.