Technician A says that the traction control system was developed to prevent the drive wheels from slipping while the vehicle is being decelerated when coming to a stop. Technician B says that above a manufacturer-specified speed, the traction control system deactivates. Who is correct

A. Technician A Only
B. Technician B Only
C. Bpth A and B
D. Neither A nor B

Option B.

Technician B Only is correct

Explanation:

Traction Control systems are systems in a vehicle that are deigned to  optimize grip and stability of the car on the road during acceleration by measuring wheel rotation.

Traction systems are designed to work during acceleration, not deceleration. this makes Technician A wrong.

Traction control systems are pretty much  active up to a manufacturer-specified speed. Above that speed, the  traction control is deactivated by the electronic brake control module because further acceleration is unlikely to cause the wheels to lose traction. This makes Technician B correct

★The second law of refraction

The ratio of sine of angle of incidence to the sine of angle of refraction is a constant for a light of given colour and for a given pair of media. This law is also called Snell's law of refraction. If 'i' is the angle of incidence and 'r' is the angle of refraction then, Sin i/Sin r = constant

This constant value is called the refractive index of the second medium with respect to the first.