Ask/Discuss with AIEEE-JEE Experts, Answer Topic-wise Questions, Discussion Forum

Ask iit jee aieee pet cbse icse state board community

Discussion Response Post to: no of vectors+?????????

Forum Index -> Vectors -> View Full Question

Author

Message

karthik (988)

Blazing goIITian

total posts: 1010
Offline

the no. of vectors of unit length perpndicular to vectors:
a vector = (1,1,0)

amd b vector = (0,1,1) is:
A 1
B 2
C 3
D infinite
===========

Since,it is given as """"vectors of unit length perpndicular """"

there can be only 2 possibilities...

..i.e. a +ve and a -ve .......i.e 2 signs.....i.e.... 2 vectors of opposite signs

So,answer is B]2

If no condition is given about itz magnitude then its Infinity.......but since mag is given ,there is only 2 possiblities......

Cheers !

IF U THINK U CAN, U CAN........IF U THINK U CAN'T, U CAN'T......... BE THE BEST OF WHAT EVER YOU ARE!!! THEN U WILL SUCCEED FOR SURE!!! [img]http://www.danasoft.com/sig/urnotugly.jpg[/img]

Like 0 people liked this

Free Sign Up!

Preparing for JEE?

Kickstart your preparation with new improved study material - Books & Online Test Series for JEE 2014/ 2015

@ INR 4,950/-

For Quick Info

Name

Mobile

E-mail

City

Class