#### 11th Standard Maths English Medium Free Online Test 1 Mark Questions 2020 - Part Two

11th Standard

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Maths

Time : 00:10:00 Hrs
Total Marks : 10

10 x 1 = 10
1. The function f:[0,2π]➝[-1,1] defined by f(x)=sin x is

(a)

one-to-one

(b)

on to

(c)

bijection

(d)

cannot be defined

2. $\sqrt [ 4 ]{ 11 }$ is equal to

(a)

$\sqrt [ 8 ]{ 11^{ 2 } }$

(b)

$\sqrt [ 8 ]{ 11^{ 4 } }$

(c)

$\sqrt [ 8 ]{ 11^{ 8 } }$

(d)

$\sqrt [ 8 ]{ 11^{ 6 } }$

3. Solve 3x2 + 5x - 2≤0

(a)

(2,$\frac{1}{3}$)

(b)

[2,$\frac{1}{3}$]

(c)

(-2,$\frac{1}{3}$)

(d)

(-2,$\frac{-1}{3}$)

4. The value of log 1 is

(a)

1

(b)

0

(c)

$\infty$

(d)

-1

5. If cos x=$\frac { -1 }{ 2 }$ $0 < x < 2\pi$and , then the solutions are

(a)

x=$\frac { \pi }{ 3 } ,\frac { 4\pi }{ 3 }$

(b)

x=$\frac { 2\pi }{ 3 } ,\frac { 4\pi }{ 3 }$

(c)

x=$\frac { 2\pi }{ 3 } ,\frac { 7\pi }{ 6 }$

(d)

x=$\frac { 2\pi }{ 3 } ,\frac { 5\pi }{ 3 }$

6. $\frac{1}{360}$ of a complete rotation clockwise is

(a)

-1°

(b)

-360°

(c)

-90°

(d)

7. There are 10 points in a plane and 4 of them are collinear. The number of straight lines joining any two of them is

(a)

45

(b)

40

(c)

39

(d)

38

8. With usual notation C0 + C2 +C4 + ... is:

(a)

2n-1

(b)

2n

(c)

2n+1

(d)

2n+2

9. If   $\overrightarrow{a}$  and   $\overrightarrow{b}$ are two vectors of magnitude 2 and inclined at an angle 60° , then the angle between   $\overrightarrow{a}$  and $\overrightarrow{a}+\overrightarrow{b}$ is

(a)

30°

(b)

60°

(c)

45°

(d)

90°

10. A matrix is chosen at random from a set of all matrices of order 2, with elements 0 or 1 only. The probability that the determinant of the matrix chosen is non zero will be

(a)

${3\over 16}$

(b)

${3\over 8}$

(c)

${1\over 4}$

(d)

${5\over 8}$