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Vector Algebra question

2021 · 27 Jul · Shift 1 · Q58

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JEE Main
Physics
Vector Algebra
2021 · 27 Jul · Shift 1 · Q58

Vector Algebra question

2021 · 27 Jul · Shift 1 · Q58

JEE MainPhysicsVector AlgebraMCQ+4 / −1

Assertion A : If A, B, C, D are four points on a semi-circular are with centre at 'O' such that

\left| {\overrightarrow {AB} } \right| = \left| {\overrightarrow {BC} } \right| = \left| {\overrightarrow {CD} } \right|

, then

\overrightarrow {AB} + \overrightarrow {AC} + \overrightarrow {AD} = 4\overrightarrow {AO} + \overrightarrow {OB} + \overrightarrow {OC}

Reason R : Polygon law of vector addition yields

\overrightarrow {AB} + \overrightarrow {BC} + \overrightarrow {CD} + \overrightarrow {AD} = 2\overrightarrow {AO}

JEE Main 2021 (Online) 27th July Morning Shift Physics - Vector Algebra Question 24 English

In the light of the above statements, choose the most appropriate answer from the options given below :

A
A is correct but R is not correct.
B
A is not correct but R is correct.
C
Both A and R are correct and R is the correct explanation of A.
D
Both A and R are correct but R is not the correct explanation of A.

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