Question

Consider the following statements:

Assertion (1): the plane y + z + 1 = 0 is parallel to the x-axis.

Reason (R): normal to the plane is parallel to the x-axis.

Of these statements:

• A. Both A and R are true and R is the correct explanation of A
• B. Both A and R are true and R is not a correct explanation of A
• C. A is true but R is false
• D. A is false but R is true

Answer 1

Answer: (C)

A is true but R is false

Answer 2

Given plane y + z + 1 = 0 is parallel to the x-axis as

0.1 + 1.0 + 1.0 = 0

but normal to the plane will be perpendicular to the x-axis