Light Pipe. Light enters a solid pipe made of plastic having an index of refraction of 1.60. The light travels parallel to the upper part of the pipe (Fig. E33.15). You want to cut the face AB so that all the light will reflect back into the pipe after it first strikes that face. (a) What is the largest that u can be if the pipe is in air? (b) If the pipe is immersed in water of refractive index 1.33, what is the largest that u can be?
ANS Lecture Notes (2-15-16) • Involuntary • Maintains homeostasis – Digestion – Respiration – Heart rate/contractility – Blood pressure – Excretion – Some Other functions – Pupil dilation/constriction – Sexual response • Everything but skeletal system (things you don’t think about controlling) • The autonomic nervous system (ANS) innervates – cardiac smooth muscle, – most exocrine glands – some endocrine glands • Two different neurotransmitters – Acetylcholine – norepinephrine • Two neurons: – a preganglionic fiber – postganglionic fiber. Sympathetic Vs. Parasympathetic • ANS is divided into the symp
