Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: A given family of curves is said to be 'self- orthogonal' if the family of orthogonal trajectory is the same as the given family of curves.
Reason R: For finding orthogonal trajectory, replace $\frac{dy}{dx}by-\frac{dx}{dy}$ in $f(x,y,\frac{dy}{dx})=0$
In the light of the above statements, choose the correct answer from the options given below:

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

Answer 1

Answer: (B)

Both A and R are true but R is NOT the correct explanation of A

Answer 2

The correct option is(B):Both A and R are true but R is NOT the correct explanation of A.