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 »
Noise pollution is a major environmental problem in Kerala. It is caused by a variety of sources including motor vehicles, construction sites, industrial activities, and everyday activities like shouting, playing music, and using loudspeakers. The state has implemented several measures to reduce noise pollution, including setting noise limits for different areas, monitoring noise levels, and …
Uses of ultrasonic waves 1. Medical imaging: Ultrasonic waves are used in medical imaging to produce a visual representation of internal body structures. Ultrasound is used to detect fetal anomalies, diagnose diseases, and guide medical procedures. 2. Cleaning: Ultrasonic waves are used in industrial and commercial cleaning applications to remove dirt, rust, and scale from …
Uses of ultrasonic waves – അൾട്രാസോണിക് തരംഗങ്ങൾകൊണ്ടുള്ള ഉപയോഗങ്ങൾ Read More »
When earthquakes occur infrasonic waves are produced and animals respond to it. why ? Infrasonic waves are sound waves that have a frequency lower than the lower limit of human hearing, which is typically around 20 Hz. It is believed that animals can sense these low frequency sound waves better than humans because they have …
Limits of audibility The range of frequencies that humans can hear is generally considered to be between 20 Hz and 20,000 Hz. This range can vary slightly from person to person, but it is generally accepted that any sound outside of this range is considered inaudible. Ultrasonic sound and Infrasonic sound Ultrasonic sound is sound …