N2 + 2O2 → 2NO2
The number to be placed before O2 is 2
The image would be 53 cm from the lens of your eye.
What is Lens?
A lens is a transmissive optical tool that uses refraction to focus or disperse a light beam. A compound lens is made up of multiple simple lenses (elements), typically arranged along a common axis, as opposed to a simple lens, which is one solid piece of transparent material. Glass or plastic are used to make lenses, which are then polished or moulded into the desired shape. In contrast to a prism, which simply refracts light without focusing it, a lens can focus light to create an image. Lenses are also devices that focus or disperse waves as well as radiation other than visible light, such as <u>explosive lenses, microwave lenses, particle lenses, and acoustic lenses</u>.
Lenses are a common component of <u>telescopes</u><u>, binoculars, and cameras, among other imaging devices</u>.
To learn more about Lens
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<h3><u>Given </u><u>:</u><u>-</u></h3>
- Here , The initial temperature of 3kg of water is 10° C
- The heat supplied to 3kg water is 7,700 J
- The specific heat of water is 4186 J/kg ° C
<h3><u>To </u><u>Find </u><u>:</u><u>-</u></h3>
- We have to find the final temperature of water .
<h3><u>Let's </u><u>Begin </u><u>:</u><u>-</u></h3>
Here, we have
- Mass = 3 kg
- Specific heat capacity = 4186 J/kg°C
- Initial temperature = 10° C
- Heat applied = 7,700J
<u>We </u><u>know </u><u>that</u><u>, </u>
- Specific heat is the heat that is required to increase the temperature of 1 kg or unit mass by 1° C or unit ° C
<u>That </u><u>is</u><u>, </u>
- Here, Change in temperature is ΔT that is, Final temperature - Initial temperature
<u>So</u><u>, </u>
<u>Subsitute </u><u>the </u><u>required </u><u>values</u><u>, </u>
Hence, The final temperature of 3kg if 7,700 J of heat supplied is 10.61 °C
Answer:
Amplitude is a measure of the size of sound waves. It depends on the amount of energy that started the waves. Greater amplitude waves have more energy and greater intensity, so they sound louder. The same amount of energy is spread over a greater area, so the intensity and loudness of the sound is less.
Explanation: