+91-8076753736[email protected]
logo
logo
-->

Vector Algebra

Question
CBSEENMA12034270
Wired Faculty App

The value of straight i with hat on top. space left parenthesis straight j with hat on top space cross times space straight k with hat on top right parenthesis. space plus space straight j with hat on top. space left parenthesis straight i with hat on top space cross times space straight k with hat on top right parenthesis space plus space straight k with hat on top. space left parenthesis straight i with hat on top space cross times space straight j with hat on top right parenthesis is

  • 0

  • -1

  • 1

  • 3

Solution

C.

1

straight i with hat on top. space left parenthesis straight j with hat on top space cross times space straight k with hat on top right parenthesis space plus space straight j with hat on top. space left parenthesis straight i with hat on top space cross times space straight k with hat on top right parenthesis space plus space straight k with hat on top. space left parenthesis straight i with hat on top space cross times space straight j with hat on top right parenthesis space space equals space straight i with hat on top space. space straight i with hat on top space plus space straight j with hat on top. space left parenthesis negative straight j with hat on top right parenthesis space plus space straight k with hat on top. space straight k with hat on top space equals space straight i with hat on top. space straight i with hat on top space minus space straight j with hat on top. space straight j with hat on top space plus space straight k with hat on top. space straight k with hat on top space equals space 1 minus 1 plus 1 space equals space 1 therefore space space left parenthesis straight C right parenthesis space is space correct space answer.

Some More Questions From Vector Algebra Chapter

Classify the following measures as scalars and vectors.
(i) 5 seconds
(ii) 1000 cm3
(iii) 10 Newton
(iv) 30 km hr
(v) 10 g/cm3
(vi) 20 m/s towards north

Classify the following measures as scalars and vectors.
10 kg

Classify the following measures as scalars and vectors.
2 meters north-west

Classify the following measures as scalars and vectors.
40°

Classify the following measures as scalars and vectors.
40 watt

Classify the following measures as scalars and vectors.
10–19 coulomb

Classify the following measures as scalars and vectors.
20 m/s2

Classify the following measures as scalars and vectors.
time period

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation