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Condition of Perpendicularity
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This lesson explains the concept of condition of perpendicularity of vectors. Thereafter examples of JEE Main level have been discussed based on dot product of vectors.

Vineet Loomba is teaching live on Unacademy Plus

Vineet Loomba
IITian | No. 1 Educator in IIT-JEE (Maths) | 2.6 Million Minutes Watch Time | 8+ Years Experience | Youtube: Maths Wallah |

Unacademy user
Thank you ma'am.. Please do make a video on writs..
The last question (Ex.19) can be done by an easy approach....We know that vector P is perpendicular to both A & B by vector P will be mx(cross product of A & B vectors )....where m is a constant value....And then by Dot product with the vector C we can find the value of m......And we got the required vector P......No need to solve 3equations of 3 variables...Am I right sir??
Abhinandan Kumar
6 months ago
mx(cross product)....x is multiplication symbol here.
ex.18 nhi samajh me aaya thik se sir.
sir,plz illustrate more problems such as is in ex17 with more examples. I will be thankful to you.
Vineet Loomba
10 months ago
okay will do
Chaitanya Sethia
8 months ago
Sir ka work Samjaana ha apne ko hi practice karni pdagi
Sir i am facing this problem that i know the concepts but don't know where to use it after sometime i quit the question and see the solution of it but after seeing it i fells that i could have done that myself , then i feels that maybe my basis are not clear(actually feel to quit studying).So basically my problem is i don't able to understand the questions or not able to understand that which concept is the particular question is requiring .Sir please help me .. thank you very much..
Vineet Loomba
a year ago
solve simpler problems initially when the topic is fresh and then take up tough problems once u hav confidence
a year ago
Thank your sir i will definitely follow your advice.
sir,plz take previce year jee questions
Vineet Loomba
10 months ago
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