Define Far point and Near point of human eye?

Q: Define apparent and real depth.

A: Depth is the distance between the two end surfaces of a medium. The real depth refers to the actual…

Q: From the given, draw on paper the ray diagram and the image formed

A: Draw the image formation for the concave lens when an object is placed at the focus f. Image…

Q: Make a graphical representation of the statement below by applying the rules of Ray Diagram. A car…

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Q: Define 1 dioptre of power of a lens.

A: Power of a lens is its ability to converge rays of light falling on it. Diopter is the unit of…

Q: Write mirror formula. Explain it.

A: The quantitative relationship between the distance of the image, distance of the object and the…

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: An object of height 4 cm is placed at 30 cm in front of a concave mirror of focal length 15cm.…

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Q: Define object distance and image distance.

A: Given:  Object distance and the image distance

Q: Define translucent medium

A: A translucent medium is a medium which allows only a fraction of light to pass through them. It is a…

Q: Define center of curvature of spherical lens.

A: Center of curvature is the center of the sphere of which the lens is originally a part.

Q: Draw a ray diagram for each of the following, and then draw the image formed. Please add complete…

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Q: Suppose the shiny back of a spoon has a 3.2 cm radius of curvature. Part (a)  Calculate the focal…

A: Given, Radius of curvature of the spoon, R = 3.2 cm

Q: In the figure below (which is not to scale) the lens creating the real, inverted image is not shown.…

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Q: Suggest two differences between the appearance of the illuminated object and the well-focused image…

A: Illuminated object: Illuminated objects are non-luminous objects which shine in the light or other…

Q: STATE THE LAWS OF REFLECTION AND REFRACTION. AND GIVE EXAMPLE FOR EACH

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Q: Define distance of distinct vision and give its range.

A: The minimum distance from the eye at which an object appears to be distinct i.e., a very clear image…

Q: Differentiate between Concave and Convex lens.

A: The concave lens is the diverging lens and its structure is thinner at middle and thicker at its…

Q: Determine focal length and magnification given radius of curvature, distance of object and image.

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Q: Define power of lens. Write its S.I unit.

A: Power of lens is defined as the inverse of the focal length of the lens. Focal length of the lens is…

Q: What is magnification? Write its formula of calculation.

A: Magnification is defined as the ratio of image height to the object height.

Q: Base your answers to questions 21 and 22 on the diagram below which represents a light ray incident…

A: speed of light increases as it crosses the boundary, hence below medium has smaller refractive…

Q: Arthur Podd's method of fishing involves spearing the fish while standing on the shore. The actual…

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Q: Show by means of a ray diagram how the focal length of a convex lens is determined by projecting a…

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Q: Define virtual vs real images.

A: Lenses and mirrors form images which might be virtual or real.

Q: Draw ray diagram for secondary images. Explain it.

A: A secondary image means an image of an image. Say, two mirrors are placed parallel, ray diagram is…

Q: A lens forms an inverted, double-sized image of an object placed 9 cm away. Calculate the focal…

A: Given: The size of the image is double the size of the object. The distance of the object from the…

Q: Determine the approximate location of the image using a ray diagram.

A: u is the distance of the object  v is the distance of the image

Q: Beam of light) θ₀ = 65° and n = 1.5.  Describe what happens to the light.

A: Total internal reflection will occur to the beam of light From law of reflection, the reflected…

Q: Explain curved image formation.

A: Image formation by curved mirror can be real or virtual. There are two types of spherical mirror,…

Q: What will be the focal length(f) of the lens in the below diagram

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Q: Construct ray diagram and show where the image of the object given below are located. Draw in the…

A: Ray diagram:

Q: horizontal, parallel with the ground). [I can't find a decent picture of this on the internet so ask…

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Q: 1. Give three applications of light year. 2. State four effects of volcanoes.

A: Applications of light year: Light year is used to measure a very long distances. Light year is also…

Q: Direction: Read the situation and answer the reflection question in one to two sentences.…

A: "Contrary to popular opinion, the Earth is not a sphere. It is also not a ball, nor an oblate…

Q: You got your birthday check so you want to go buy that new tv widescreen tv have an aspect ratio of…

A: Here it is given that,  Aspect ratio=16:9 Height of tv=34 Let's see how we find the size of tv:

Q: Draw and explain ray diagram for the formation of a virtual image.

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Q: Define the process of color subtraction.

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Q: Compare and contrast spherical aberration and chromatic aberration. When does each occur?

A: Question to answer :Compare and contrast spherical aberration and chromatic aberration. When does…

Q: Define the term nearsightedness.

A: Nearsightedness otherwise known as Myopia is a condition of defective vision. In this case image is…

Q: Explain the image shown below.

A: I need more information to solve

Q: Define spherical mirrors.

A: A mirror in which it has a shape of piece cut out of a spherical mirror is known as spherical…

Q: Define focal length of spherical mirrors.

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