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11th Standard Maths English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Four

11th Standard

    Reg.No. :
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Maths

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

    Answer all the questions

    10 x 1 = 10
  1. If 3 is the logarithm of 343 then the base is

    (a)

    5

    (b)

    7

    (c)

    6

    (d)

    9

  2. If the arcs of same lengths in two circles sustend central angles 30° and 40° find the ratio of their radii

    (a)

    3:4

    (b)

    4:3

    (c)

    7:12

    (d)

    none of these

  3. The value of cos 20°-sin 20° is

    (a)

    positive

    (b)

    negative

    (c)

    0

    (d)

    1

  4. If nC4,nC5,nC6 are in AP the value of n can be

    (a)

    14

    (b)

    11

    (c)

    9

    (d)

    5

  5. Each of five questions is a multiple-choice test has 4 possible answers. The number of different sets of possible answers is

    (a)

    45-4

    (b)

    54-5

    (c)

    1024

    (d)

    1023

  6. If the two straight lines x + (2k -7)y + 3 = 0 and 3kx + 9y - 5 = 0 are perpendicular then the value of k is

    (a)

    k=3

    (b)

    \(k=\frac13\)

    (c)

    \(k=\frac23\)

    (d)

    \(k=\frac32\)

  7. If co-ordinate axes are the angle bisectors of the pair of lines ax2+2hxy+by2=0 then

    (a)

    a=b

    (b)

    h=0

    (c)

    a+b=0

    (d)

    a2+b2=0

  8. The co-ordinates of a point on x+y+3=0 whose distance from x+2y+2=0 is \(\sqrt 5\), is

    (a)

    (9,6)

    (b)

    (-9,6)

    (c)

    (6,-9)

    (d)

    (-9,-6)

  9. If \(|\overrightarrow{a}|=13,|\overrightarrow{b}|=5\)  and \(\overrightarrow{a}.\overrightarrow{b}=60^o\) then \(|\overrightarrow{a}\times\overrightarrow{b}|\) is

    (a)

    15

    (b)

    35

    (c)

    45

    (d)

    25

  10. A man has 3 fifty rupee notes, 4 hundred rupees notes, and 6 five hundred rupees notes in his pocket. If 2 notes are taken at random, what are the odds in favour of both notes being of hundred rupee denomination?

    (a)

    1:12

    (b)

    12:1

    (c)

    13:1

    (d)

    1:13

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