Index of refraction - Study guides, Class notes & Summaries

NLN PAX Verbal Science Practice Test Questions & Answers 2024/2025 A student focuses sunlight to a point with a thin converging (convex) lens. Which of these direct measurements can the student make as a result of this experiment? A) The approximate focal length of the lens. B) The approximate wavelength of the light used. C) The approximate speed of light. D) The approximate index of refraction of the lens material. - ANSWERSA) Approximate focal length of lens The bending of a wave aro...

The doppler shift is 5000 Hz. The pulse repetition frequency is 9000 Hz. Which of the following is true? A. peak pressure gradient is 36mmHg B. range ambiguity will occur C. aliasing will occur D. the peak velocity is equal to 2 m/s - ️️C. aliasing will occur When evaluating a suspected arterial stenosis, a doppler angel of ____ degrees will produce the most accurate flow velocity. A. 0 B. 30 C. 60 D. 90 - ️️A. 0 Spatial resolution is: A. the minimum reflector separation req...

Index of Refraction of CR39 correct answers 1.498 (1.50/1.49 rounded) index of refraction of Crown Glass correct answers 1.523 (1.52 rounded) Index of refraction of trivex correct answers 1.53 index of refraction of polycarbonate correct answers 1.586 (1.58/1.59 rounded) index of refraction of 1.70 Glass correct answers 1.71 index of refraction of 1.80 Glass correct answers 1.81 Base curve of -8.00-.12.00 D correct answers Plano Base curve of -5.00 to -9.00D correct answ...

ABO Certification Exam Solved Questions With Revised Correct Detailed Answers 1. Compound myopic astigmatism - ANSWER no longer simple because all rays hit different spots on the retina, all falling too short (some further than others) 2. Compound myopic astigmatism example - ANSWER -3.00-1.25*045 3. Compound hyperopic astigmatism - ANSWER -1.00-0.50*180 no longer simple because all rays hit different spots, all falling beyond the retina(some further than others)...

ABO Advance Questions With Complete Solutions. The amount of reflection of each surface of CR-39 lenses is approximately - correct answer. 4% The absorption of light in lenses is classified by two variables. What are they? A. base curve and thickness B. index of refraction and thickness C. thickness and lens transmission D. tint and lens transmission - correct answer. D. tint and lens transmission The denser the tint in a lens A. the greater the transmission of ligh...

A student focuses sunlight to a point with a thin converging (convex) lens. Which of these direct measurements can the student make as a result of this experiment? A) The approximate focal length of the lens. B) The approximate wavelength of the light used. C) The approximate speed of light. D) The approximate index of refraction of the lens material. Answer - A) Approximate focal length of lens The bending of a wave around an obstacle is known as A. diffraction. B. deflection. C. refract...

ABO Prep/Study Guide 2024 Questions with Complete Solutions| American Board of Opticianry what is the relationship between abbe value and chromatic aberration? (Ans: - The abbe value of a material is INVERSELY proportional to the chromatic aberration; the higher the abbe value, the lower the chromatic aberration refraction (Ans: - the bending of light as it passes from one medium to another of a different index of refraction; the amount of refraction depends on the incident angle and index...

abo exam accurate Questionvitreous humor - ANSWER the transparent, colorless mass of soft, gelatinous material which fills the eyeball behind the lens: 1.42 - ANSWER the index of refraction of the crystalline lens is: 1.37 - ANSWER the cornea has an index of refraction of: 6 - ANSWER the extra-ocular muscles are inserted into the sclera and serve to rotate the eye in all possible directions. There are _______________ of these muscles in each eye. sclera and cornea - ANSWER the fibrou...

ABO STUDY GUIDE 2024/2025 Prentice Rule - ️️ - (Power x distance in mm) /10 Cornea index of refraction - ️️ - 1.37 Tear Film, Vitreous index of refraction - ️️ - 1.33 Crystalline lens index of refraction - ️️ - 1.42 Optical Standard index of refraction - ️️ - 1.53 Crown Glass index of refraction - ️️ - 1.523 High index of refraction - ️️ - 1.74 CR-39 index of refraction - ️️ - 1.49/1.50 Poly index of refraction - ️️ - 1.586 Air - ️️ - 1.00 How f...

Microbiology - Lab Practical 1 100% Correct Ocular Lens(es) Eyepiece Magnifies 10X Objective Lens(es) Parfocal Usually 4X, 10X, 40X, 100X Mechanical Stage Allows you to move a slide in order to see different specimens on it Condenser Focuses light from light source Iris Diaphram Controls amount of light that passes through a specimen Coarse Adjustment (Knob) Helps to focus image Should never be used with 100X lens Fine Adjustment (Knob) Helps to focus image details Resolution The abili...