Ultrasound cleaning utilizes high-frequency sound waves transmitted through a liquid medium. This method is particularly effective for objects with intricate designs or hard-to-reach areas.
The effectiveness of ultrasound cleaning stems from a phenomenon called cavitation. Here's how it works:
These micro-jets generated during cavitation are capable of penetrating deep into crevices, blind holes, and intricate features of an object's surface. The intense scrubbing action effectively dislodges and removes contaminants like dirt, oils, and residues from every part of the object, regardless of its shape complexity.
The high frequency of ultrasound waves is crucial. It ensures that cavitation occurs throughout the liquid and reaches all surfaces, including those that are difficult to access with traditional cleaning methods. This makes ultrasound cleaning superior for items with complex shapes where uniform cleaning is essential.
What is the colour of the light emitted by the Sun?
Lightning occur in the sky when two clouds:
With reference to street-lighting, how do sodium lamps differ from LED lamps?
1. Sodium lamps produce light in 360 degrees but it is not so in the case of LED lamps.
2. As street lights, sodium lamps have a longer life span than LED lamps.
3. The spectrum of visible light from sodium lamps is almost monochromatic while LED lamps offer significant colour advantages in street lighting.
Select the correct answer using the code given below.
Which one of the following is a reason why astronomical distances are measured in light-years?
In a pressure cooker, the temperature at which the food is cooked depends mainly upon which of the following?
1. Area of the hole in the lid
2. Temperature of the flame
3. Weight of the lid
Select the correct answer using the code given below.