Answer:
b : 60m
Explanation:
when a plane mirror is placed horizontally on a level ground at a distance of 60m from the top of tower as shown in figure. a/c to question, The top of tower and its image in the mirror subtend an angle of 90° at the eyes. so, angle made by top of tower and horizontal line is 45° as
Hey there!
The correct answer to your question is: Intensity
The rate which light flows through a given area of space is referred to as its intensity. I<span>ntensity and wavelength are two factors which contribute to light energy.</span>
Thank you!
Answer:
A material that contains three elements joined in a fixed proportion will be a <u><em>compound.</em></u>
Explanation:
An element can be described as a substance that is made of only one kind of atom.
<em>On the other hand, a compound can be described as a substance that is made up of more than one atom or elements. A compound can contain fixed proportions of each element that it is made of or it can even contain different proportions of each element. </em>
For example, carbon dioxide is a compound which will always contain 12 grams of carbon for every 32 grams of oxygen.
Answer:
1.) Radar
2.) Cancer Treatment
4.) Cooking
Explanation:
Microwaves are a type of electromagnetic radiations, like radio waves, X-rays, Gamma Rays, ultraviolet radiation. Microwaves has a wide range of applications. It has frequency range 1GHz to 300GHz and has smaller wavelengths. As microwaves do not bend by any obstacles coming in their path, So, it can be used in radar. In cancer treatment, it is used to increase the temperature of tumor cells by high-power microwaves, results in turns cell membrane damage, which in results destruction of cancer cells. In cooking, microwave heat food like the sun rays your face i.e by means of radiation. It increases the energy of molecules inside food, which results in cooking or heating the food.
I believe its air particles