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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

    Answer all the questions

    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)

    \({5\over 8}\)

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