Elements have balanced protons and electrons, so the answer is 88.
Answer:
Technician B is correct
Explanation:
Unless the car owner just put oil in the car, the sudden distrust of the pressure sending unit is alarming.
Even if the car owner just replaced oil, so many other things can cause a running out of oil.
So, the better option is to check the oil pressure with a gauge outside of the car system before deciding to replace the pressure sending unit.
In young's double slit experiment that uses monochromatic light the interference pattern formed has Central bright band with alternate dark and bright band That is option B
Explanation-
In this young experiment two small slits Namely a and b are formed on the screen and a monochromatic light is focused on them. Wavelets come out of of this lets scintillating and overlapping each other. This we get from huyginns principal, thus forming alternate dark and bright bands with bright band at center and all bands are about one meter apart.