NEET UG PHYSICS MCQ: MOTION IN PLANE

1 Easy

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Understanding +4 | -1

Statement-I: Angle between

\hat{i}+\hat{j}

and

\hat{i}

45^{\circ}

.
Statement-II:

\hat{i}+\hat{j}

is equally inclined to both

\hat{i}

and

\hat{j}

and the angle between

\hat{i}

and

\hat{j}

90^{\circ}

View answer and explanation

Correct option: A

Statement-I is true and statement-II is true

Option A is correct because the angle between

\hat{i}+\hat{j}

and

\hat{i}

is indeed 45 degrees, and the second statement correctly explains why.

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\mathrm{\vec a}\,and\,\mathrm{\vec b}

\mathrm{\vec a}\,and\,\mathrm{\vec b}

\overrightarrow P \,\,.\,\,\overrightarrow Q = 0\,and\,\overrightarrow P \,\, \times \,\,\overrightarrow Q = 0

\overrightarrow Q \,and\,\overrightarrow R

\vec{A}=3 \hat{i}+4 \hat{j}

\vec{B}=6 \hat{i}+8 \hat{j}

A

B

\overrightarrow{\mathrm{A}}

\overrightarrow{\mathrm{B}}

{\cot ^{ - 1}}\left( 2 \right)