
Concept explainers
(a)
The three smallest angles on the either side of central maximum at which no light will reach the cat's retina and it is assumed the eyeball of cat is filled with air.

Answer to Problem 104QAP
1st smallest angle =
2nd smallest angle =
3rd smallest angle =
Explanation of Solution
Given:
Width of slit =
Formula used:
Following equation satisfy for the diffraction of single slit,
Calculation:
Since, w is very small to
In this situation, we can apply the following approximation,
Now, let's plug all values in above equation,
Conclusion:
So, the three smallest angles on the either side of central maximum at which no light will reach the cat's retina and medium inside the eye ball is air are
(b)
The three smallest angles on the either side of central maximum at which no light will reach the cat's retina and it is assumed the eyeball of cat is filled with a liquid having refractive index 1.4.

Answer to Problem 104QAP
1st smallest angle =
2nd smallest angle =
3rd smallest angle =
Explanation of Solution
Given:
Refractive index fluid that is in the eyeball,
Wavelength of light in air =
Width of slit =
Formula used:
Wavelength of light in medium is written as,
Calculation:
Wavelength of light in fluid,
Now, from above formula,
Let's plug all values,
Conclusion:
Thus, the three smallest angles on either side of retina of cat's eye when eyeball is filled with fluid having refractive index
(c)
The explanation of the order of fringes due to diffraction of light by cat's eye

Answer to Problem 104QAP
Cat cannot distinguish the location of fringe on the retina.
Explanation of Solution
From above discussion, we can see that angle of diffraction of light on either side of central bright spot of the retina is very small. So, location of bright and dark fringes would be very close to each other. Cat's eye has no ability to perceive that order of fringes. So, cat would perceive it as continuous bright light not as alternate dark and bright that occurs due to diffraction.
Conclusion:
Thus, cat would not see that alternate dark and bright fringes.
Want to see more full solutions like this?
Chapter 23 Solutions
FlipIt for College Physics (Algebra Version - Six Months Access)
- 2. In class, we discussed several different flow scenarios for which we can make enough assumptions to simplify the Navier-Stokes equations enough to solve them and obtain an exact solution. Consulting the cylindrical form of the Navier-Stokes equations copied below, please answer the following questions. др a 1 a + +0x- + +O₂ = Pgr + μl 18²v, 2 ave ²v₁] az2 + at or r de r Əz dr ar Vodvz др [18 + + +Or + +Vz = Pgz +fl at ar r 20 ôz ôz dr ave дов V,Ve ave +Or + + = pge at dr r 80 Əz + az2 a.) In class, we discussed how the Navier-Stokes equations are an embodiment of Newton's 2nd law, F = ma (where bolded terms are vectors). Name the 3 forces that we are considering in our analysis of fluid flow for this class. др a 10 1 ve 2 av 2200] + +μ or 42 30 b.) If we make the assumption that flow is "fully developed" in the z direction, which term(s) would go to zero? Write the term below, describe what the term means in simple language (i.e. do not simply state "it is the derivative of a with…arrow_forward1. Consult the form of the x-direction Navier-Stokes equation below that we discussed in class. (For this problem, only the x direction equation is shown for simplicity). Note that the equation provided is for a Cartesian coordinate system. In the spaces below, indicate which of the following assumptions would allow you to eliminate a term from the equation. If one of the assumptions provided would not allow you to eliminate a particular term, write "none" in the space provided. du ди at ( + + + 매일) du ди = - Pgx dy др dx ²u Fu u + fl + ax2 ay² az2 - дх - Əz 1 2 3 4 5 6 7 8 9 Assumption Flow is in the horizontal direction (e.g. patient lying on hospital bed) Flow is unidirectional in the x-direction Steady flow We consider the flow to be between two flat, infinitely wide plates There is no pressure gradient Flow is axisymmetric Term(s) in equationarrow_forwardDon't use ai to answer I will report you answerarrow_forward
- why did the expert subtract the force exerted by the hand and the elbow by the force due to the weight of the hand and forearm and force exerted by the tricep. Does the order matter and how do you determine what to put first. Question 4 AP, CHAPTER 13 FROM BASIC BIOMECHANICS 8TH EDITIONarrow_forwardThe drawing illustrates the dispersion of light by a prism. The prism is made from a certain type of glass, and has a cross section shaped like an equilateral triangle. The indices of refraction for the red and violet light in this type of glass are 1.649 and 1.694, respectively. The angle of incidence for both the red and violet light is 60.0°. Find the angles of refraction at which the (a) red and (b) violet rays emerge into the air from the prism. Glass prism Incident light Normal (a) Normal Incident light Red (660 nm) (b) Violet (410 nm)arrow_forwardDon't use ai to answer I will report you answerarrow_forward
- A glass block (n = 1.56) is immersed in a liquid. A ray of light within the glass hits a glass- liquid surface at a 70.0° angle of incidence. Some of the light enters the liquid. What is the smallest possible refractive index for the liquid?arrow_forwardThe drawing shows a crystalline slab (refractive index 1.995) with a rectangular cross section. A ray of light strikes the slab at an incident angle of 01 = 35.0°, enters the slab, and travels to point P. This slab is surrounded by a fluid with a refractive index n. What is the maximum value of n such that total internal reflection occurs at point P? Ме Buarrow_forwardWhat is the amount of M112 needed to breach a 5-foot thick dense concrete wall utilizing an internal charge placed in the center of the target?arrow_forward
- A small postage stamp is placed in front of a concave mirror (radius = 1.1 m), such that the image distance equals the object distance. (a) What is the object distance? (b) What is the magnification of the mirror (with the proper sign)?arrow_forwardCalculate the anti-clockwise torque and the clockwise torque of the system with the ruler and the washers. Record these values in Data Table 5. Ruler = 11.56 g, small washer = 1.85 g, large washer = 24.30 g. Calculate the % Difference in the Torques and record the values in Data Table 5. Is ΣAnticlockwise torque and Anticlockwise torque the same thing, are they solved in the same way?arrow_forwardA window washer stands on a uniform plank of mass M = 142 kg and length l = 2.80 m supported by 2 ropes attached at the ends of the plank. The window washer has a mass m = 68.0 kg. What is the tension in each of the ropes, T1 and T2, if the window washer's displacement from the center of mass of the plank is x = 0.930 m as shown in Figure 1: Window Washer Problem?arrow_forward
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegeUniversity Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStaxPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning





