Amber (n = 1.546) is a transparent brown-yellow fossil resin. An insect, trapped and preserved within the amber, appears to be 2.3 cm beneath the surface when viewed directly from above. How far below the surface is the insect actually located? Number i Units

An olive is at the bottom of a glass of alcohol (n = 1.36). 6.78 cm beneath the surface. Above the alcohol is air. To a person in the air, who is directly above the olive, what is the apparent depth d' of the olive. d'= Number Units

= The figure is shown TO SCALE. Each block represents a 1.00 cm square. It shows a ray of light entering a rectangular piece of glass (n₂ 1.50) from air (n₁ = 1.00). Find the position (x,y in cm) where the ray exits the glass. Or, if it does not exit the glass, find the (x,y) position of the second point (the second reflection) where total internal reflection occurs. In either case, be sure to check if total internal reflection occurs. Cheese file to unload Movimuvo filo cine: 20MDY

The incident light ray enters water from air with an angle of incidence 0₁= 46.8°. nair-1.00. nwater-1.33. Find the angle of reflection in degrees. Normal format with 3 SF.

A camera lens used for taking close-up photographs has a focal length of 21 mm. The farthest it can be placed from the film is 33.3 mm. a. What is the closest object that can be photographed?  mm b. What is the magnification of this closest object?  X

2. An object is 1 meter above the surface of water. You are underwater, looking straight up toward the object. How far (express in meters) above the air-water interface does the object appear to be? Use a small-angle approximation for Snell's law. Draw a diagram showing your reasoning.

Problem 85. A light ray is incident upon a transparent parallel plate of index of refraction 1.52 at an angle of 40° as shown below. A) Sketch the path of the ray through the plate and exiting the plate. B) Find the angle of refraction in the plate at the entry into the plate. C) Find the angle of refraction in the air at the exit from the plate. Air Plate Air 40 1

デジタル形式で段階的に解決 ありがとう!! SOLVE STEP BY STEP IN DIGITAL FORMAT While standing on top of a 50.0 m tall building, you discover a friend standing on the street corner. Using a protractor and a plumb line, he finds that the angle between the horizontal and the direction toward the point on the sidewalk where his friend is standing is 25.0°. His eyes are located 1.75 m above the top of the building. How far from the building level is his friend?

Photographs at a scale of S are required to cover an area X - mi square. The camera has a focal length and focal plane dimensions of 9 * 9in . If endlap is 60% and sidelap 30\% how many photos will be required to cover the area for the data given below?   ▾ Part A   S = 1/6500 ; X = 8 f = 152.4mn   Express your answer as an integer.