If a fish is trying to capture insect hovering above the surface of water – how will it jump to catch it?  Will it aim above or below what it sees? Explain.

Q: over a 2.0 mm long line drawn on a sheet of paper. What length of line is seen by someone looking…

A:

Q: A submerged scuba diver looks up toward the calm surface of afreshwater lake and notes that the Sun…

A: Given, The angle of sun appeared to scuba driver, θr= 350 from vertical The diver’s friend is…

Q: Explain why an object in water always appears to be at a depth shallower than it actually is? Why do…

A: An object in water always appears to be at a depth shallower than it actually is and people…

Q: Students are taking turns shining a light from their cell phones through the SAME lens and onto a…

A: Given : Students are taking turns shining a light from their cell phones through the SAME lens and…

Q: The lens of the human eye is converging. Do you anticipate the picture created on the retina to be…

A: The image formed by the converging lens on retina is real and inverted. Also if the object is…

Q: An underwater diver sees the sun 56 degrees above horizontal. How high is the sun above the horizon…

A: The problem is solved by using Snell's law…

Q: What are real & virtual images? Can you focus them on a screen?

A: A real image is formed when the rays of light after reflection or refraction actually meet at some…

Q: Concave mirror Experiment   object height = 0.60m object distance = 3.00cm Radius of curvature =…

A: The relation between image distance, object distance and magnification (m) is:

Q: Which cues do we use to determine if an object is closer to us than an object that we are focusing…

A: Given : Choose the correct option.

Q: A submarine is 2.90 x 10“ m horizontally from shore and 1.00 x 10 m beneath the surface of the…

A: horizontal distance of submarine from the shore (EB) = 290 m Depth of submarine from water level…

Q: After a long day of travel, late at night, you swim in the pool of the hotel where you are staying.…

A:

Q: What are the differences between real and virtual images? How can you tell (by looking) whether an…

A: A real image is formed when the rays of light after reflection or refraction a meet at some point…

Q: An underwater scuba diver sees the Sun at an apparent angle of 47.0° above the horizontal. What is…

A: Given data: Refracted angle θ2 = 47orefractive index of water (nw) = 1.333 refractive index of air…

Q: Two coins are at equal distances from your eye. One is under 40 cm of water, the other under 40 cm…

A: The coin will appear closer in that medium, for which the refractive index is higher. Refractive…

Q: The critical angle for ethyl alcohol is 47.289° when surrounded by air then. (a) construct the ray…

A: Critical angle is Φ = 47.289 ⁰  Let the refractive index of ethyl alcohol is ne . And the refractive…

Q: Just beneath the surface of some very placid water (n = 1.33), lurks a shark. A piece of meat is…

A: Agree with Friend 1 statement

Q: What are some real world applications of a concave lens? Why might it be useful to use a concave…

A: Application of concave lens in real world are as follow :- Concave lens is used   camera  Laser…

Q: Suppose you are looking down at an object under water. Let Da = apparent depth and Dr = real depth…

A: The apparent depth of object under water decreases when viewed obliquely due to the refraction of…

Q: People who do very detailed work close up, such as jewellers, often can see objects clearly at much…

A: Distance=25cm

Q: At a particular time of day, the Sun's elevation angle is 60° above the horizon. For a diver who is…

A: The sun is at angle 60° above to the horizon. So angle of incident is  i = 90-60 = 30° The…

Q: What is the shape of the wavefront in each of the following cases:(a) Light diverging from a point…

A: Given:  Given light sources

Q: A person with normal vision can focus on objects as close as a few centimeters from the eye up to…

A: Write the given values of this problem. For part B. u=∞v=3.50 m For part D. u=0.350 mv=0.600 m

Q: You observe a fish through the flat side of a large saltwater aquarium. The fish appears to be…

A: When observing an object through a medium from air, the object seems to be apaarently closer to the…

Q: In the concave, convex lens, the slope of 1/s' vs 1/s is '-1' How do you interpret the slope of…

A: A lens is a transparent tool made of glass, passing through which a light ray bends. Typically,…

Q: When fully dilated, the pupil of a cat is approximately 12.5 mm wide. For 621 THz light ("T" stands…

A: The diameter of the pupil of the cat is Dpupil=12.5 mm=12.5×10-3 m The frequency of the light is…

Q: Having become stranded in a remote wilderness area, you must live off the land while you wait for…

A:

Q: A spotlight is mounted on a pole at the end of a fishing pier as shown below. If the light is…

A: We have light hitting the surface of the water from a height y=3.5 m and horizontal distance x=8.3 m…

Q: Just beneath the surface of some very placid water (n = 1.33), lurks a shark. A piece of meat is…

A: The answer is given below

Q: A boy floating on a pond watches a fish swim away from him as in the figure below. If the fish is…

A: Consider maximum visible distance =d and the depth of the pond h=1.13 m Index of refraction of water…

Q: An underwater scuba diver sees the Sun at an apparent angle of 45° above the horizontal. What is the…

A: Given:

Q: Which has the greatest index of refraction? Medium A or B? Or Both Medium A and B?

A: SOlutioN: Which has the greatest index of refraction? Medium A or B?

Q: A boy floating on a pond watches a fish swim away from him as in the figure below. If the fish is…

A:

Q: A small teddy bear is 12.0 [cm] from the surface of a shiny Christmas ball with diameter 10.0 [cm].…

A:

Q: Determine happens to the image when an object is on top of the center of curvature of a converging…

A:

Q: Having become stranded in a remote wilderness area, you must live off the land while you wait for…

A:

Q: A fish is 60 cm beneath the surface of a pond. An insect is flying directly overhead. If the insect…

A: Given: Refractive index of air, n1 =1 Refractive index of water, n2=1.33 Position of insect above…

Q: 22. A straight glass rod appears to bend when placed in a beaker of water, as shown in the diagram…

A: In this problem, why is glass rod appears to bend see into the water as shown figure.

Q: A submarine is 300 m horizontally from the shore of a freshwater lake and 100 m beneath the surface…

A: As per guidelines, the first three sub-parts have been answered.

Q: A pebble 1 cm tall is placed 40 cm to the left of a +5-diopter lens. A -5-diopter lens is placed 30…

A: Given that A pebble 1 cm tall is placed 40 cm to the left of a +5-diopter lens. A -5-diopter lens is…

Q: In order to identify an unknown material you are asked to solve for the critical angle of the…

A:

Q: ft tall person walks away from a 10 ft lamp post at a constant rate of 3 ft/sec. What is the rate…

A:

Q: A mirror hangs 1.80 m above the floor on a vertical wall. A ray of sunlight, reflected off the…

A: Given data: The position of the mirror is do=1.80 m The spot on the floor is df1=1.07 m Next day…

Q: must live off the land while you wait for rescue. One morning, you attempt to spear a fish for…

A: Use snell's law                     μasinϕ = μsinθ                    (1.0)sin(43.40 °) = (1.33)…

Nature of light

Light is transverse and electromagnetic radiation that exhibits the properties of a wave as well as a particle. For this reason, light is said to have a “dual nature.”