In an experiment to measure the
The minimum angular speed of the wheel for this experiment.
Answer to Problem 1P
The minimum angular speed of the wheel is
Explanation of Solution
Given info: The distance between the light source and the mirror was
The formula to calculate the angular speed of the wheel is,
Here,
The formula to calculate
Here,
Substitute
The formula to calculate
Here,
Substitute
Substitute
Conclusion:
Therefore, the minimum angular speed of the wheel is
Want to see more full solutions like this?
Chapter 34 Solutions
Physics for Scientists and Engineers with Modern Physics
- Light traveling in a medium of index of refraction n1 is incident on another medium having an index of refraction n2. Under which of the following conditions can total internal reflection occur at the interface of the two media? (a) The indices of refraction have the relation n2 n1. (b) The indices of refraction have the relation n1 n2. (c) Light travels slower in the second medium than in the first. (d) The angle of incidence is less than the critical angle. (e) The angle of incidence must equal the angle of refraction.arrow_forwardA light ray travels from air (n=1.00) into a crown glass (n=1.52) with an angle of incidence of 49 degrees. The light ray continues to travel through the crown glass material into the diamond (n=2.42). At what angle does the light ray make with the normal line as it enters the diamond?arrow_forwardThe speed of light in a vacuum is 3.00 ´ 108 m/s. If the speed of light passing through silicon is 7.5 ´ 107 m/s, what is the refractive index of silicon? a) 40 b) 2.5 c) 25 d) 4arrow_forward
- The speed of light in a vacuum is 3.00 ´ 108 m/s. If the speed of light passing through silicon is 7.5 ´ 107 m/s, what is the refractive index of silicon? Question 1 options: a) 25 b) 2.5 c) 4 d) 40arrow_forwardLight, when incident on a given surface, presents a reflected and a refracted component. When the reflected beam is perpendicular to the refracted beam, the angle of incidence θᵢ is called Brewster's angle. If a beam of light is initially in air with index of refraction n₁ = 1 and is incident on a glass surface (index of refraction n₂ = 1.5), Brewster's angle is: a)82.9° b)36.3° c)75.4° d)62.9° e)56.3° f)45.7°arrow_forwardA ray of light falls perpendicular to face AB of a prism whose cross section is an isosceles rectangle. The ray follows the path shown in the figure. About the refractive index of the prism material it is correct to state that necessarily: a) n = 1,2 b) n > 1,2 c) n < 1.2 d) n = root of 2 e) n > the root of 2 f) n < root of 2 g) n = 1.6 h) n > 1.6 i) n < 1.6 j) n = root of 3 k) n > root of 3 l) n < root of 3 m) n = 2.0 n) n > 2.0 o) n < 2.0arrow_forward
- A light beam is directed parallel to the axis of a hollow cylindrical tube. When the tube contains only air, it takes the light 8.72 ns to travel the length of the tube, but when the tube is filled with a transparent jelly, it takes the light 2.04 ns longer to travel its length. What is the refractive index of the jelly? NOTE: The final answer should be 1.23.arrow_forwardWhat happens when light moves from a medium with a high refractive index into a medium with a lower refractive index at an angle of incidence of less than 90°? a) The ray of light speeds up and bends towards the normal. b) The ray of light continues on the exact same path. c) The ray of light speeds up and bends away from the normal. d) The ray of light continues on the exact same path, but at a faster speed.arrow_forwardThe pupil of an eagle’s eye has a diameter of D = 6.2 mm and has about the same refractive index in its eye as does a human eye. The average index of refraction of the material in the eye is approximately n = 1.36. The eagle spots two field mice are on the ground from an alitude of H = 120 m. the eagle sees them as one unresolved object and dives toward them at a speed of 22 m/s. Assume that the eagle’s eye detects light that has a wavelength of 555 nm in vacuum. Determine how far apart the two mice must be on the ground for the eagle to see the mice as separate objects?arrow_forward
- The speed of light in a vacuum is 3.00 ´ 108 m/s. If the speed of light passing through the compound benzene is 2.00 ´ 108 m/s, what is the refractive index of benzene? a) 1.66 b) 0.5 c) 0.66 d) 1.5arrow_forwardThe drawing shows a ray of light traveling from point A to point B, a distance of 7.80 m in a material than has an index of refraction n1. At point B, the light encounters a different substance whose index of refraction is n2 = 1.63. The light strikes the interface at the critical angle of Thetac = 49.2°. How much time does it take for the light to travel from A to B?arrow_forwardThe speed of light in a vacuum is 3.00 ´ 108 m/s. If the speed of light passing through the compound benzene is 2.00 ´ 108 m/s, what is the refractive index of benzene? Question 20 options: a) 1.66 b) 0.5 c) 0.66 d) 1.5arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning