A converging lens is placed at x = 0, a distance d = 11.5 cm to the left of a diverging lens as in the figure below (where FC and FD locate the focal points for the converging and the diverging lens, respectively). An object is located at x = −1.80 cm to the left of the converging lens and the focal lengths of the converging and diverging lenses are 3.50 cm and −9.00 cm, respectively. HINT An illustration shows a converging lens, a diverging lens, and their respective pairs of focal points oriented such that the x-axis serves as their shared Principal axis. The converging lens is located at x = 0 and the diverging lens is a distance d to the right. A pair of focal points (both labeled FC) are shown on opposite sides of the converging lens while another pair (both labeled FD) are shown on opposite sides of the diverging lens. An arrow labeled O is located between the converging lens and the left-side FC. Between the lenses, the diverging lens's left-side FD is located between the converging lens and its right-side FC. (a)
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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