State the difference between Concave and convex mirror with examples?
CONVEX MIRROR - In the convex mirror, the image is in small size spread over a large area virtual and erect it is used as a real view mirror in vehicles.CONCAVE MIRROR - in concave mirror image is large real and inverted used as a make-up mirror it is also used by dentist. it forms virtual image when the object is very closed to the mirror..!! HOPE YOU UNDERSTOOD..!! :))
State the difference between Concave and convex mirror with examples?
Concave Mirrors:
Concave mirrors are spherical mirrors with a reflective surface that curves inward. They are also known as converging mirrors as they converge incoming light rays towards a focal point. Concave mirrors have several unique properties that make them useful in various applications.
Key Properties:
1. Focal Point: Concave mirrors have a focal point (F) located halfway between the center of curvature (C) and the mirror's surface. Light rays that are parallel to the principal axis converge and meet at the focal point after reflection.
2. Focal Length: The distance between the focal point (F) and the mirror's surface is called the focal length (f). It is half the radius of curvature (R) of the mirror.
3. Real and Virtual Images: Depending on the position of the object, concave mirrors can form both real and virtual images. Real images are formed when the object is placed beyond the focal point, while virtual images are formed when the object is placed between the mirror and the focal point.
4. Magnification: Concave mirrors can magnify or reduce the size of an object. The magnification factor can be determined using the formula: magnification (m) = height of image (h') / height of object (h).
Examples:
1. Makeup Mirrors: Concave mirrors are commonly used in makeup mirrors to magnify the reflection of the face, allowing for easier application of cosmetics.
2. Reflecting Telescopes: The primary mirror of reflecting telescopes is often a concave mirror. It collects and converges light to form an image, which is then viewed through an eyepiece.
3. Headlights of Vehicles: The headlights of automobiles often use concave mirrors to focus and direct the light produced by the bulb, increasing visibility for the driver.
Convex Mirrors:
Convex mirrors are spherical mirrors with a reflective surface that curves outward. They are also known as diverging mirrors as they diverge incoming light rays. Convex mirrors have unique properties that make them useful in various practical applications.
Key Properties:
1. Focal Point: Convex mirrors do not have a real focal point. Instead, they have a virtual focal point (F) located behind the mirror. Light rays that are parallel to the principal axis appear to diverge from this point after reflection.
2. Focal Length: The focal length (f) of a convex mirror is negative as the focal point is virtual and located behind the mirror.
3. Reduced Image Size: Convex mirrors always produce reduced, virtual, and upright images, regardless of the object's position. These images appear smaller than the actual object.
4. Wide Field of View: Convex mirrors provide a wider field of view compared to concave mirrors. They are often used as side-view mirrors in vehicles to increase the driver's visibility of the surrounding traffic.
Examples:
1. Security Mirrors: Convex mirrors are commonly used in stores, parking lots, and other areas for surveillance purposes. They provide a wide field of view, allowing for better observation of the surroundings.
2. Rear-view Mirrors: The rear-view mirrors in vehicles are typically convex mirrors. They provide a wider field of view of the road behind, reducing blind spots for the driver.
3. Roadway Safety Mirrors: Convex mirrors are used on roadways
To make sure you are not studying endlessly, EduRev has designed Class 7 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 7.