The figure shows the orientation of two vectors u and v in the XY plane. Which of the following is correct?

1. a and p are positive while b and q are negative.

2. a, p and b are positive while q is negative.

3. a, q and b are positive while p is negative.

4. a, b, p and q are all positive.

Subtopic:  Resolution of Vectors |
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The component of a vector r along the X-axis will have maximum value if:

1. r is along the positive Y-axis

2. r is along the positive X-axis

3. r makes an angle of 45o with the X-axis

4. r is along the negative Y-axis

Subtopic:  Resolution of Vectors |
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Consider the quantities of pressure, power, energy, impulse, gravitational potential, electric charge, temperature and area. Out of these, the only vector quantities are

1. impulse, pressure, and area

2. impulse and area

3. area and gravitational potential

4. impulse and pressure

Subtopic:  Vector Product |
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Three vectors A, B, and C add up to zero. Then:
(a) vector (A×B)×C is not zero unless vectors B and C are parallel.
(b) vector (A×B).C is not zero unless vectors B and C are parallel.
(c) if vectors A, B and C define a plane, (A×B)×C is in that plane.
(d) (A×B).C = |A||B||C| $\to$ C2 = A2 + B2

The incorrect statement/s is/are:

1. (b, d)
2. (a, c)
3. (b, c, d)
4. (a, b)

Subtopic:  Vector Product |
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It is found that |A + B| = |A|. This necessarily implies:

1. B = 0

2. A, B are antiparallel

3. A and B are perpendicular

4. A.B ≤ 0

Subtopic:  Resultant of Vectors |
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If |A| = 2 and |B| = 4, then match the relations in column I with the angle θ between A and B in column II.

 Column I Column II (a) AB = 0 (i) θ   =   0 ° (b) AB = 8 (ii) θ   =   90 ° (c) AB = 4 (iii) θ   =   180 ° (d) AB = -8 (iv) θ   =   60 °


Choose the correct answer from the options given below:
1. (a)–(iii), (b)-(ii), (c)-(i), (d)-(iv)
2. (a)–(ii), (b)-(i), (c)-(iv), (d)-(iii)
3. (a)–(ii), (b)-(iv), (c)-(iii), (d)-(i)
4. (a)–(iii), (b)-(i), (c)-(ii), (d)-(iv)

Subtopic:  Scalar Product |
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For two vectors A and B, |A+B|=|A - B| is always true when:

(a) |A| = |B| $\ne$ 0

(b)

(c) |A| = |B| $\ne$ 0 and A and B are parallel or antiparallel.

(d) when either |A| or |B| is zero.

Choose the correct option/s:

1. (a, d)

2. (b, c)

3. (b, d)

4. (a, b)

Subtopic:  Resultant of Vectors |
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The angle between  is

1. 45°

2. 90°

3. –45°

4. 180°

Subtopic:  Scalar Product |
To view explanation, please take trial in the course below.
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