The centre of curvature of a curved surface is the point from which the normal to the surface at any point on it appears to emanate. It is the centre of a circle or sphere whose surface intersects the surface at the same point, and this circle or sphere is the osculating sphere at the …
what is concave mirror and convex mirror ? A concave mirror is a curved mirror with a inwardly curved reflecting surface. Light rays that enter the mirror parallel to its principal axis are reflected to a focal point. This type of mirror is commonly used in optical devices such as telescopes, microscopes, and even makeup …
concave mirror and convex mirror – കോൺകേവ് മിററും കോൺവെക്സ് മിററും Read More »
The peculiarities of a reflecting surface in a spherical mirror are: The reflecting surface of a spherical mirror is curved. All incident rays from a given point on the object are reflected in such a way that they appear to originate from a single point on the other side of the mirror, called the focus. …
A spherical mirror is a curved mirror that has the same radius of curvature in every direction. It is a type of concave mirror, meaning it is curved inward. The most common type of spherical mirror is the convex mirror, which has a bulging outward curved surface. This type of mirror is used to reflect …
write down the special features of the image on the spoon in relation to the shape of the reflection surface ? The image is distorted due to the curved shape of the spoon reflection surface. The image appears to be curved in a convex shape due to the concave shape of the spoon. The image …
Identify the importance of sense of organ ‘ear’ and engage in activity to help people with hearing impairments. The ear is an incredibly important sense organ because it allows us to hear and interpret sound. Our ears are responsible for helping us communicate with others and allowing us to experience music and the world around …
Explain that sound requires a material or medium for propagation and that it travels through different media. Sound is a form of energy that requires a material or medium for propagation. The medium through which sound travels affects the speed, intensity, and direction of the sound wave. Sound travels through air, water, and solid matter, …
Explain that sound is produced by vibration and identify the factors which are required for the perception of sound Sound is produced when an object vibrates, which causes particles of the surrounding medium (such as air) to move in a series of waves. These waves travel through the medium to a person’s ear, where they …
There are many ways to reduce noise pollution. These include the following: Adjust the volume of sound systems and other audio equipment Turn off loud machinery when not in use Plant trees and vegetation to absorb sound Install barriers such as soundproof walls and windows Insulate walls and floors Use noise-canceling headphones Limit the number …
Reducing noise pollution – ശബ്ദ മലിനീകരണം കുറയ്ക്കുക Read More »
What are the disadvantages of noise pollution? 1. Health Effects: Noise pollution can cause physical and psychological health issues such as hearing loss, tinnitus, hypertension, sleep disturbances, cardiovascular disease, distraction, and stress. 2. Interference with Communication: Loud noises can interfere with conversations, making it difficult to communicate effectively. 3. Environmental Disturbance: Loud noises can disrupt …
The disadvantages of noise pollution – ശബ്ദ മലിനീകരണത്തിന്റെ ദോഷങ്ങൾ Read More »