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The magnitude of the vector product of t...

The magnitude of the vector product of two vectors is `sqrt(3)` times their scalar product. The angle between the two vectors is

A

`pi//2`

B

`pi//6`

C

`pi//32`

D

`pi//4`

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The correct Answer is:
To solve the problem, we need to find the angle between two vectors given that the magnitude of their vector product is \(\sqrt{3}\) times their scalar product. ### Step-by-Step Solution: 1. **Understanding the Relationship**: We know that: - The magnitude of the vector product (cross product) of two vectors \(\mathbf{A}\) and \(\mathbf{B}\) is given by: \[ |\mathbf{A} \times \mathbf{B}| = |\mathbf{A}| |\mathbf{B}| \sin \theta \] - The scalar product (dot product) of the same vectors is given by: \[ \mathbf{A} \cdot \mathbf{B} = |\mathbf{A}| |\mathbf{B}| \cos \theta \] 2. **Setting Up the Equation**: According to the problem, we have: \[ |\mathbf{A} \times \mathbf{B}| = \sqrt{3} (\mathbf{A} \cdot \mathbf{B}) \] Substituting the expressions for the vector and scalar products, we get: \[ |\mathbf{A}| |\mathbf{B}| \sin \theta = \sqrt{3} (|\mathbf{A}| |\mathbf{B}| \cos \theta) \] 3. **Cancelling Common Terms**: Assuming \(|\mathbf{A}|\) and \(|\mathbf{B}|\) are not zero, we can divide both sides by \(|\mathbf{A}| |\mathbf{B}|\): \[ \sin \theta = \sqrt{3} \cos \theta \] 4. **Using the Tangent Function**: Dividing both sides by \(\cos \theta\) (assuming \(\cos \theta \neq 0\)): \[ \frac{\sin \theta}{\cos \theta} = \sqrt{3} \] This simplifies to: \[ \tan \theta = \sqrt{3} \] 5. **Finding the Angle**: The angle \(\theta\) for which \(\tan \theta = \sqrt{3}\) is: \[ \theta = \frac{\pi}{3} \text{ or } 60^\circ \] 6. **Conclusion**: Therefore, the angle between the two vectors is: \[ \theta = \frac{\pi}{3} \] ### Final Answer: The angle between the two vectors is \(\frac{\pi}{3}\).

To solve the problem, we need to find the angle between two vectors given that the magnitude of their vector product is \(\sqrt{3}\) times their scalar product. ### Step-by-Step Solution: 1. **Understanding the Relationship**: We know that: - The magnitude of the vector product (cross product) of two vectors \(\mathbf{A}\) and \(\mathbf{B}\) is given by: \[ ...
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