
Concept explainers
(a)
The time taken by the light to reach the earth surface from the atmosphere at the distance of
(a)

Answer to Problem 41P
The time taken by the light to travel
Explanation of Solution
Given info: The distance
The value of refractive index at the Earth’s surface is
The expression for the refractive index at any distance
Formula to find the time required to transverse the atmosphere is,
Here,
The expression for index of any medium is,
Here,
Rearrange the above equation for
Substitute
Substitute
Further simplify the above equation.
Substitute
Thus, the time taken by the light to travel
Conclusion:
Therefore, the time taken by the light to travel
(b)
The percentage increase in time when the light travels in the absence of Earth’s atmosphere.
(b)

Answer to Problem 41P
The percentage increase in the time when atmosphere is absent is
Explanation of Solution
Given info: The distance
Formula to calculate the time required when light travels in absence of atmosphere is,
Here,
Substitute
The time taken by the light to travel
Write the expression for percentage increase.
Thus, the percentage increase in the time when atmosphere is absent is
Conclusion:
Therefore, the percentage increase in the time when atmosphere is absent is
Want to see more full solutions like this?
Chapter 25 Solutions
Principles of Physics: A Calculus-Based Text, Hybrid (with Enhanced WebAssign Printed Access Card)
- A filmmaker wants to achieve an interesting visual effect by filming a scene through a converging lens with a focal length of 50.0 m. The lens is placed betwen the camera and a horse, which canters toward the camera at a constant speed of 7.9 m/s. The camera starts rolling when the horse is 36.0 m from the lens. Find the average speed of the image of the horse (a) during the first 2.0 s after the camera starts rolling and (b) during the following 2.0 s.arrow_forwardAnswer the question (Physics)arrow_forwardsolve smybolically and plug in numbers and solve at the endarrow_forward
- answer the question symbolically until you have to plug in numbers. show all work please.arrow_forwardWhat is the direction of the magnetic force on a NEGATIVE CHARGE that moves as shown in each of the six cases?arrow_forwardHi! I need help with these calculations for part i and part k for a physics Diffraction Lab. We used a slit width 0.4 mm to measure our pattern.arrow_forward
- Examine the data and % error values in Data Table 3 where the angular displacement of the simple pendulum decreased but the mass of the pendulum bob and the length of the pendulum remained constant. Describe whether or not your data shows that the period of the pendulum depends on the angular displacement of the pendulum bob, to within a reasonable percent error.arrow_forwardIn addition to the anyalysis of the graph, show mathematically that the slope of that line is 2π/√g . Using the slope of your line calculate the value of g and compare it to 9.8.arrow_forwardAn object is placed 24.1 cm to the left of a diverging lens (f = -6.51 cm). A concave mirror (f= 14.8 cm) is placed 30.2 cm to the right of the lens to form an image of the first image formed by the lens. Find the final image distance, measured relative to the mirror. (b) Is the final image real or virtual? (c) Is the final image upright or inverted with respect to the original object?arrow_forward
- Concept Simulation 26.4 provides the option of exploring the ray diagram that applies to this problem. The distance between an object and its image formed by a diverging lens is 5.90 cm. The focal length of the lens is -2.60 cm. Find (a) the image distance and (b) the object distance.arrow_forwardPls help ASAParrow_forwardPls help ASAParrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningAn Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning





