QUESTION 7 Suppose you are looking through a convergent lens at an object and you see an upright iImage, what can you say about where the object is in relation to the focal length of the lens? OA Nothing can be said, lenses are tricky OB The object is outside the focal length of the lens. OC The object is inside the focal length of the lens OD. The object is sitting on the focal length of the lens QUESTION 8 Calculate the magnification if an object is located 15 cm from a lens and produces an image located 20 cm on the other side of the lens OA11333 OB-1.333 OC-0.75 O D.0.75 QUESTION 9 Consider a convergent lens with a focal length of 30 cm Calculate the location of the image produced by this lens if the object is located a distance of 40 cm from the lens OA 120 cm OB 17.14 cm OC0 0083 cm OD.60 cm QUESTION 10 Consider a divergent lens with a 20 cm focal length Calculate the image distance if the object is located 4cm away from the lens OA5 cm OB333 cm OC 333 cm O0.5 cm
Ray Optics
Optics is the study of light in the field of physics. It refers to the study and properties of light. Optical phenomena can be classified into three categories: ray optics, wave optics, and quantum optics. Geometrical optics, also known as ray optics, is an optics model that explains light propagation using rays. In an optical device, a ray is a direction along which light energy is transmitted from one point to another. Geometric optics assumes that waves (rays) move in straight lines before they reach a surface. When a ray collides with a surface, it can bounce back (reflect) or bend (refract), but it continues in a straight line. The laws of reflection and refraction are the fundamental laws of geometrical optics. Light is an electromagnetic wave with a wavelength that falls within the visible spectrum.
Converging Lens
Converging lens, also known as a convex lens, is thinner at the upper and lower edges and thicker at the center. The edges are curved outwards. This lens can converge a beam of parallel rays of light that is coming from outside and focus it on a point on the other side of the lens.
Plano-Convex Lens
To understand the topic well we will first break down the name of the topic, ‘Plano Convex lens’ into three separate words and look at them individually.
Lateral Magnification
In very simple terms, the same object can be viewed in enlarged versions of itself, which we call magnification. To rephrase, magnification is the ability to enlarge the image of an object without physically altering its dimensions and structure. This process is mainly done to get an even more detailed view of the object by scaling up the image. A lot of daily life examples for this can be the use of magnifying glasses, projectors, and microscopes in laboratories. This plays a vital role in the fields of research and development and to some extent even our daily lives; our daily activity of magnifying images and texts on our mobile screen for a better look is nothing other than magnification.
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