If \( \vec{a}, \vec{b}, \vec{c} \) are unit vectors such that \( \v... VIDEO
If \( \vec{a}, \vec{b}, \vec{c} \) are unit vectors such that \( \vec{a}+\vec{b}+\vec{c}=\overrightarrow{0} \), then the value of \( \vec{a} \cdot \vec{b}+\vec{b} \cdot \vec{c}+\vec{c} \cdot \vec{a} \) is
(A) 1
(B) 3
(C) \( -\frac{3}{2} \)
\( \mathrm{P} \)
WV
(D) None of these
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions 2023-02-13 The Class X students of a secondary school in Krishinagar have been allotted a rectangular plot ... 2023-02-13 What is the term used for the German Parliament?
\( \mathrm{P} \)
(... 2023-02-13 (i) What does BOD \& COD stands for?
(ii) Dissolved oxygen in water... 2023-02-13 Which one of the following is a different pair?
(a) \( \mathrm{Li},... 2023-02-13 A triangle \( \mathrm{ABC} \) is drawn to circumscribe a circle of radius \( 4 \mathrm{~cm} \) s... 2023-02-13 The rate of chemisorption
(a) decreases with increase of pressure.
\( \mathrm{P} \)
(b) is indep... 2023-02-13 Assuming that elements are formed to complete the seventh period, w... 2023-02-13 The vertices of a \( \triangle \mathrm{ABC} \) are \( \mathrm{A}(4,6), \mathrm{B}(1,5) \) and \(... 2023-02-13 In general the property (magnitudes only) that show
\( \mathrm{P} \... 2023-02-13 \( \mathrm{P} \)
Given in the figure are two blocks A and B of weig... 2023-02-13 If \( \vec{a}, \vec{b}, \vec{c} \) are unit vectors such that \( \v... 2023-02-13 What is the role of \( \mathrm{CO}_{2} \) in the 'greenhouse effect... 2023-02-13 Construct a triangle of sides \( 4 \mathrm{~cm}, 5 \mathrm{~cm} \) and \( 6 \mathrm{~cm} \) and ... 2023-02-13 A particle of mass \( m \) is at rest at the origin at time \( t=0 ... 2023-02-13 For any vector \( \vec{a} \), the value of \( (\vec{a} \times \hat{... 2023-02-13 Give the symbol of the elements of lowest atomic number that has th... 2023-02-13 (i) Define environmental chemistry.
(ii) Discuss social relevance o... 2023-02-13 Some statements about heavy water are given below:
\( \mathrm{P} \)
(a) Heavy water is used as a... 2023-02-13 The atomic number of the element unnilennium is
\( \mathrm{P} \)
[J... 2023-02-13 If \( A_{1}, A_{2} \) be two arithmetic means and \( G_{1}, G_{2} \... 2023-02-13 The electronic configuration of few elements is given below. Mark t...