What is the critical angle and how does it relate to total internal reflection?
1 answer:
Answer:
critical angle is the angle of incidence in optically denser medium, for which the angle of reflection in the less denser medium is 90 degree
Explanation:
total internal reflection occurs at one particular angle of incidence where the reflected ray lies on the boundary.
this angle is called the critical angle
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<h3><u>Given</u> </h3>
- Mass of an object is
- Height of the body is
- Value of the energy
Where,
= Mass
= Gravity
= Height
Now, Converting gram to kg
1000g = 1kg
20g =
= 0.02 kg
According to the question
Putting these values
Potential Energy = mgh
Potential Energy = 0.02 × 10 × 2
Potential Energy = 0.2 × 2
Potential Energy =