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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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Question Type: Analyze
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Difficulty Level: Easy
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A satellite S is moving in an elliptical orbit around the earth. The mass
- A wave in a string has an amplitude of 2cm. The wave travels in the positive direction
- A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string
- Light emitted during the de excitation of electron from n=3 to n=2, when incident
- An ideal coil of 10 H is connected in series with a resistance of 5Ω and a battery
Question Type: Analyze (10)
Difficulty Level: Easy (1008)
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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