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The equation r=lambda hati represents...

The equation `r=lambda hati` represents

A

the X-axis

B

the yoz-plane

C

the y-axis

D

the Z-axis

Text Solution

Verified by Experts

The correct Answer is:
A
The given equation is `vecr=lambda hati`
`Rightarrow xhati+yhatj+zhatk=lambdahati Rightarrow x =lambda, y=0, z=0`
Which are equations of X-axis as they they can be written as
`(x-0)/(1)=(y-0)/(0)=(z-0)/(0)=lambda`
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