Q: Light goes to one medium to another then it's wavel
A: Light is a form of electromagnetic radiation emitted by hot objects like lasers, bulbs, and the sun.…
Q: Why will googles allow a swimmer under water to focus more clearly on what he or she is looking at?
A: While we are underwater, our eyes do not focus properly due to the water’s impact on the eyes, as a…
Q: When a lens is called a magnifier?
A: The magnification ratio of a lens is the ratio of the size of the image to the size of the object.…
Q: In a Jules Verne novel, a piece of ice is shaped into a magnifyinglens to focus sunlight to start a…
A: Magnifying glasses concentrates the light beam at a point and raise the temperature of that point.…
Q: A myopic person sees that her contact lens prescription is –4.00 D . What is her far point?
A: Formula - P=1do+1diWhere,P =Power of the contact lensdo =Distance of the objectdi =Distance of the…
Q: A ray of light travelling in air enters obliquely into water. Does the light ray bends towards the…
A: The light ray bends towards the normal.
Q: How can a clear object be transparent and visible at the same time?
A: When we put the pure water in a extra clear glass, it makes transparent system of glass and water.…
Q: What kind of image do diverging lenses always produce?
A: diverging lens
Q: Can a converging lens be made to diverge light if placed in aliquid? How about a converging mirror?
A: A converging lens can be made to diverge light if placed in a liquid. If the liquid has a higher…
Q: Repeat the previous problem for eyeglasses held 1.50 cm from the eyes.
A:
Q: If you see a fish in the water should you cast to the image behind it or in front of it so you bait…
A: Since the refractive index of water is greater than air, therefore the light ray will bend inward…
Q: The far point of a myopic administrator is 50.0 cm. The far point of a myopic administrator is 50.0…
A:
Q: Why are bifocals needed mainly by older persons and notgenerally by younger people?
A: Generally, younger people suffer from either myopia or hypermetropia. Hence, they use a single lens…
Q: What is the far point of a person whose eyes have a relaxed power of 50.5 D Your answer
A:
Q: Light is incident from medium 1 to mediu the permeability of medium 2 is 3/4.
A: Given:- The brewster's angle = 55.40 The transmitted angle is = 34.60 The permeability of the…
Q: In the other opening photo of physics teacher Fred Myers taking a photo of his daughter McKenzie,…
A:
Q: Are all real images larger than the object?
A: Real images are those that can be viewed when a screen is placed in the plane of convergence. It is…
Q: Can real images be projected on a screen? Can virtual images?Can either be photographed? Discuss…
A: real and virtual image
Q: Why is an object in water always appear to be at a depth shallower than it actually is?
A: When light ray falls on surface of varying medium, it produces phenomenon such as reflection and…
Q: When a light beam emerges from water into air, the average light speed
A: incident medium = water transmitted medium = air refractive index of water = 1.33 refractive index =…
Q: Why does a clear pool of water always appears to be shallower than actual it is?
A: Let us assume a clear pool has a depth of 'd' meters. To explain : Why does the pool appears…
Q: Why must a camera lens be moved farther from the sensoror film to focus on a closer object?
A: Camera lens
Q: What is the near point of a person whose eyes have an accommodated power of 53.5 D?
A: According to thin lens equation, 1f=1v+1u The power of the lens is P=1f
Q: Is the image formed on the retina of the human eye uprightor inverted? Discuss the implications of…
A: Eyes have lens which is convex in nature so image formed by retina of human eye is inverted.
Q: A person can see well in the distance, but cannot do so at an arm’s-length distance. To correct…
A: There are some common vision defects in which a person is not able to see either the nearest object…
Q: A pond with a total depth 1ice + water2 of 3.25 m is covered bya transparent layer of ice, with a…
A: Given - Total depth of pond ( ice + water), d = 3.25 m Thickness of ice layer , di = 0.38 m Hence ,…
Q: A coin is placed at the bottom of a tank which is filled by two liquid layers as shown. The apparent…
A: Real depths when refractive index is 3/2, d1=4.5 cm Real depths when refractive index is 4/3,…
Q: A spoon standing in a clear glass of water appears to be broken because water has a different…
A: A spoon standing in a clear glass of water appears to be broken because water has a different…
Q: A small object faces the convex spherical glass window of a small wate curvature of the window is…
A: Given:- The object distance is u = -30 cm The radius of curvature of the glass R = 5 cm the…
Q: A diver under water, looks obliquely at a fisherman standing on the bank of a lake. Would the…
A: The observer is inside the water and the object is outside water. So ray of light is travelling from…
Q: Why is the lettering on the front of some vehicles backward?
A:
Q: What is the difference between magnification andresolution? Can either increase without the other?
A: Magnification is the process by which we can see very small objects in an enlarged view. Resolution…
Q: A nearsighted man cannot see objects clearly beyond 20cm from his eyes. How close must he stand to a…
A: It is given that the person’s image must be at a distance of 20 cm from him in order for him to be…
Q: An object is located 1.50 m from a 6.5-D lens. By howmuch does the image move if the object is moved…
A: Given: The distance of object is u=1.50 m. The power of lens is P=6.5 D. The expression for image…
Q: Long Sightedness means: A) near images are blurry B) far images are blurry C) Both A & B D)…
A:
Q: produces an erect image th 5 when your face is 24 cm
A:
Q: A certain nearsighted person cannot see distinctly objects beyond 80 cm from the eye. What is the…
A:
Q: Can someone please help me ASAP It says Is the image accelerating or not? And explain
A:
Q: A model rocket 0.5 m from a diverging lens is 0.9 m tall. Its image appears -0.2 m from the lens.…
A: Given .. Object distance = 0.5 m = u Height of object = 0.9 m =h1 Image distance = -0.2 m =v ( -ve…
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- You can argue that a that piece of glass, such as in a window, is like a lens with an infinite focal length. If so, where does it form an image? That is, how are diand dorelated?A goldfish is swimming at 2.00 cm/s toward the front wall of a rectangular aquarium. What is the apparent speed of the fish measured by an observer looking in from outside the front wall of the tank?righr conical vessel whose apex angle is 90°. At what rate is the the path? At what speed is the length of the shadow increasing? 8 cm/min. If the melting snowball is always a perfect spherical I m/s. At what speed is the end of the person's shadow moving along Per who Wis being poured at a constant rate of 3 cm/s into an inyered onds, in e line is rer level rising when the depth is p cm? wate is 6 m directly above a straight footpath. A person 2 m tall A long the footpath away from the light at a constant speed of A melting snowball is decreasing in volume at a constant rate of S cm/min. If the melting snowball is always a perfect spherical find the rate at which its radius is changing when the radius conds, ven by of the shape, is 4 cm.
- A person spearfishing from a boat sees a fish located 3 m from the boat at an apparentdepth of 1m. To spear the fish, should the person aim (a) at, (b) above, or (c) below theimage of the fish?Standing 2.3 m in front of a small verticalmirror, you see the reflection of your belt buckle, which is 0.72 mbelow your eyes. (a) What is the vertical location of the mirrorrelative to the level of your eyes? (b) What angle do your eyes make with the horizontal when you look at the buckle? (c) If you nowmove backward until you are 6.0 m from the mirror, will you stillsee the buckle, or will you see a point on your body that is above orbelow the buckle? ExplainIt’s night and you’ve accidentally dropped your keys in aswimming pool. Using aflashlight, you locate the keys at the bottom of the pool.The light shines on the key onthe bottom of the pool, when the flashlight is held 1.2 mabove the water surface andis directed at the surface a horizontal distance of 1.5 mfrom the edge.If the water here is 4.0 m deep, how far is the key fromthe edge of the pool?
- (a) A plane mirror can be considered a limiting case of aspherical mirror. Specify what this limit is. (b) Determinean equation that relates the image and object distances inthis limit of a plane mirror. (c) Determine the magnificationof a plane mirror in this same limit. (d) Are your results inparts (b) and (c) consistent discussionson plane mirrors?A coin is lying at the bottom of a pool of water that is 5.5 feetdeep. Viewed from directly above the coin, how far below the surface of the water does the coin appear to be? (The coin is assumedto be small in diameter; therefore, we can use the small-angleapproximations sin u ≅ tan u ≅ u.)2) A person whose eyes arem1.5 m above ground approaches a pool of water of depth 2m and length 1.5 m. At what distance from the edge of the pool will she first see a point: at the bottom of the pool? Hed cerson who prescription s 5.00 d=? 1.5m me near point of a far-sighted parson who lon is400
- A peregrine falcon is the fastest bird, flying at a speed of 200 mi/h. Naturehas adapted the bird to reach such a speed by placing baffles in its nose toprevent air from rushing in and slowing it down. Also, the bird’s eyes adjusttheir focus faster than the eyes of any other creature, so the falcon can focusquickly on its prey. Assume that a peregrine falcon is moving horizontally atits top speed at a height of 100 m above the ground when it brings its wingsinto its sides and begins to drop in free fall. How far will the bird fall vertically while traveling horizontally at a distance of 100 m? *Must include big six list for both x and y directions*The rear window in a car is approximately a rectangle, 1.7 mwide and 0.45 m high. The inside rearview mirror is 0.50 m fromthe driver’s eyes, and 1.90 m from the rear window. What are theminimum dimensions for the rearview mirror if the driver is to beable to see the entire width and height of the rear window in themirror without moving her head?As shown a meter stick lying on the bottom of a 100-cm-long tank with its zero mark against the left edge. You look into the tank at a 30° angle, with your line of sight just grazing the upper left edge of the tank. What markdo you see on the meter stick if the tank is (a) empty, (b) half full of water, and (c) completely full of water?