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Set 5 of 5 · Questions 121-131 of 131

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NEET Physics · Vectors & Basic Mathematics · Set 5 (Q121-131)

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  1. 121.
    Two towns and are connected by regular bus service. A scooterist moving from to speed of 20 notices that a bus goes past it every 21 minute in the direction of his motion and every 7 minute in the opposite direction. If a bus leaves in either direction every minute, the period is
    1. (1)1.5 minute
    2. (2)9.5 minute
    3. (3)6 minute
    4. (4)10.5 minute
  2. 122.
    Two identical pendulums are tied from the same rigid support. One is tied horizontally. The other is released when they are making the same angle with the vertical.
    1. (1)
    2. (2)
    3. (3)1
    4. (4)
  3. 123.
    If and are perpendicular to each other. The value of is
    1. (1)-4
    2. (2)4
    3. (3)-3
    4. (4)3
  4. 124.
    The vector and are perpendicular to each other. The positive value of a is
    1. (1)3
    2. (2)4
    3. (3)9
    4. (4)13
  5. 125.
    If then angle between and is
    1. (1)0°
    2. (2)30°
    3. (3)45°
    4. (4)60°
  6. 126.
    If force and displacement then the work done is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  7. 127.
    What is the value of linear velocity, if and
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  8. 128.
    In an expression ;
    1. (1)b is order of magnitude for a≥5
    2. (2)b is order of magnitude for a≤5
    3. (3)a is order of magnitude for b≤5
    4. (4)b is order of magnitude for 5<a≤10
  9. 129.
    Two vector and have magnitude 3 each . Find angle between A and B
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  10. 130.
    The angle between the two vectors and will be
    1. (1)Zero
    2. (2)45°
    3. (3)90°
    4. (4)180°
  11. 131.
    If mass is written as then the value of will be : (Constants have their usual meaning with a dimensionless constant)
    1. (1)
    2. (2)
    3. (3)2
    4. (4)