Parson turbine has a degree of reaction equal to

Question

Assertion (A): parson turbine has a degree of reaction equal to 50% 

Reason (R): It is a reaction turbine with symmetrical fixed and moving blades

Codes:

1.  Both A and R are indidually true and R is the correct explanation of A
2. Bothe A and R are individually true but R is not the correct explanation of A
3. A is true but R is false
4. A is false but R is true