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Which is the equation of the sphere with...

Which is the equation of the sphere with unit radius having centre at the origin ?

A

`x^2+y^2+z^2=0`

B

`x^2+y^2+z^2=1`

C

`x^2+y^2+z^2=2`

D

`x^2+y^2+z^2=3`

Text Solution

Verified by Experts

The correct Answer is:
B
`(x-x_1)^2+(y-y_1)^2+(z-z_1)^2=r^2`
Centre (0,0,0) and radius =1
`(x-0)^2+(y-0)^2+(z-0)^2=(1)^2`
`x^2+y^2+z^2=1`
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