After School

1. Magnification 🔍

​Magnification (M) is the ratio of the height of the image (hi) to the height of the object (ho). The formula is:
M = hi/ho
Given an object height of 5m and an image height of 25m
m = 25/5
m = 5
Answer: Magnification = 5× (if the image is inverted, it would be –5, but with the given data we take magnitude).

2(a). Refractive Index 📐
The refractive index (n) is a measure of how much a medium slows down light compared to a vacuum. It is defined by Snell's Law, which relates the angles of light as it passes between two media.

The formula using the angle of incidence theta_1 and the angle of refraction theta_2 is:
n = sin (theta_1/sin(theta_2)
2(b). Calculating Refractive Index
Using the formula above, we have an angle of incidence of 30° and an angle of refraction of 18°.
To find the refractive index, we need to calculate:
n = sin30°/sin18°

Given: i = 30° , r = 18°
n = sin 30°/sin 18°
= 0.5/0.3090
= 1.618
Answer: n = 1.62 (no units).

🚀Parental, Students and Teachers Roles

Parents/Guardians should be actively involved in the education of their children and wards.
We invest money and follow it up, to ensure it yields ROI.
We also have to follow up these children, to get the best out of them.
This is one untold truth, that can refocus the youths, reframe minds and engender societal peace and growth.
In view, of the present maladies in our country and globally.
From AfterSchool

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❤️ Save this for a difficult parenting day.
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