Assertion {A}: If {A}, {B}, {C}, {D} are four points on a semi-circular arc with centre at 'O' such that |\overrightarrow{{AB}}|=|\overrightarrow{{BC}}|=|\overrightarrow{{CD}}|, then {{AB}}^{\to}+\overrightarrow{{AC}}+\overrightarrow{{AD}}=4 \overrightarrow{{AO}}+\overrightarrow{{OB}}+{{OC}}^{\to} Reason R : Polygon law of vector addition yields {{AB}}^{\to}+{{BC}}^{\to}+\overrightarrow{{CD}}+\overrightarrow{{AD}}=2{{AO}}^{\to} In the light of the above statements, choose the most appropriate answer from the options given below : [27 Jul 2021 Shift 1]

Correct Answer is : Both A and R are correct but R is not the correct explanation of A.

A is correct but R is not correct.

A is not correct but R is correct.

Both A and R are correct and R is the correct explanation of A.

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

JEE Main 27 July 2021 Shift 1 Solved Paper

Section: Physics

Question : 11 of 90

Marks: +1, -0

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

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|=|

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|=|

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|, then

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Reason R : Polygon law of vector addition yields

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

[27 Jul 2021 Shift 1]

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