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Vectors A⃗, B⃗ and C⃗ are such that A⃗ . B⃗ = 0 and A⃗ . C⃗ = 0 Then the vector parallel to A⃗ is
Options
(a) B⃗ and C⃗
(b) A⃗ x B⃗
(c) B⃗+ C⃗
(d) B⃗ x C⃗
Correct Answer:
B⃗ x C⃗
Explanation:
vector triple product
A⃗ x (B⃗ x C⃗) = B⃗ (A⃗.C⃗) – C⃗ (A⃗.B⃗) = 0
A⃗ || (B⃗ x C⃗)
[ A⃗.B⃗ = 0 and A⃗.C⃗ = 0]
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A charge of 100 μC has a potential at a distance of 9 m is
- Zenor breakdown will occur if
- Three cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel
- The maximum wavelength of radiations emitted at 900K is 4 µm. What will be the maximum
- If t₁ ̷ ₂ is the half-life of a substance, then t₃ ̷ ₄ is the time in which
Question Type: Analyze (10)
Difficulty Level: Easy (1008)
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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