Exercises: 1. Consider a lens with a focal length of 75 mm surrounded by air. An object with height of 5 mm is located 150 mm to the left of the lens. Calculate the position and height of the image. 2. Consider an object 2 cm tall object located 6 m to the left a -2D spectacle lens. Calculate the position and height of the image. 3. Assume that the anterior radius, posterior radius and thickness of the lens are 9.4 mm, - 5.6 mm, and 3.5 mm respectively when the eye is relaxed, and 5.8 mm, -5.0 mm and 4.2 mm, respectively when the eye is accommodated. Calculate the power of the lens in the relaxed state and the accommoJated state. You can assume that the lens has a refractive index of 1.415 and that aqueous and vitreous have a refractive index of 1.336. ed 141 KB 13% o search

Q: Why the acuity of our vision is limited?

A: Why the acuity of our vision is limited.

Q: When does light not refract upon entering a different medium?

A: refraction of light

Q: How do lenses and mirrors form images?

A: Lenses form images because the light rays actually meets at the point after the refraction through…

Q: What is reflection?

A: Reflection can be defiend in many ways:1. Reflection is a phenomena in which rays of light (or waves…

Q: What is the another name for Farsightedness?

A:

Q: Magnifying power of a simple microscope is inversely proportional to the focal length of the lens.…

A: Grinding lenses of very small focal lengths is not very easy.

Q: Lenses such as those in microscopes and telescopes depend on which property of light?

A:

Q: Define the term power of a lens. In what unit it is expressed?

A: Power of lens is the ability of the lens to converge the rays of light falling on it.

Q: What is a refractive mirror?

A: The process of bending of light while travelling from one medium to another is called refraction .

Q: How does the depth of focus at high power compare with the depth of focus at low power?

A: Introduction: The compound microscope is used to magnify an object to 1000 times it's original size.…

Q: why does the moon seem to be producing light from the student’s view?

A:

Q: What and some components of fiber optics and also their pros and cons?

A: Fiber optics - a technology that associates with transmission of information via light pulses along…

Q: What happens to a ray of light when it passes through a lens?

A: Lens can converge or diverge light.

Q: Give difference between microscope and telescope.

A: Microscopes and telescopes function same by letting a person view objects not visible to the naked…

Q: Which of the following terms describes an object that emits light as a result of high temperatures?…

A: Incandescence :  it is the light emission due hot bodies or simply like any blackbody  ex: The Sun…

Q: What makes a rainbow curved?

A:

Q: What is the importance of the optical phenomenon?

A: Any observable events which are a result from  light's interaction & matter are considered to be…

Q: what happens to the focal length (decreases, increases) when two lenses, convex and concave, are put…

A: focal length f of a combination of two lenses having focal length f1  and f2        1/f= 1/f1 +1/f2…

Q: Choose the BEST answer to the following: A real image can be cast on a screen by a (a) converging…

A: A real image is formed when the light rays converge at a point whereas a virtual image is formed as…

Q: What are the rules of ray diagramming in lenses? (concave and convex)

A: Convex lens is converging lens while concave lens is diverging lens.

Q: Discuss the concept of refraction of light. How does the speed of light change as it passes through…

A:

Q: what type of lens is a magnify glass? Converging Lens Diverging Lens Plano Convex Lens Plano Concave…

A: we need to identify the lens used in magnifying glass

Q: Is this lens diverging or converging?

A: converging lens is a lens if parallel rays after passing through it passes through focus point or…

Q: How is angular magnification (or magnifying power) different from the magnification of an image by a…

A:

Q: List 4 reflecting telescopes

A: A telescope in which a mirror is used to collect and focus the light is known as reflecting…

Q: In the opening photo of the duck standing on the rock, why are the duck’s feet not shown in the…

A: As the reflection occurs at same position, the image of the feet formed at same place. The object…

Q: Categorize the descriptions as they pertain to either adaptive optics, active optics, or both.…

A: Given Data: Let us consider the given categorize the description as they pertain to either adaptive…

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.”