Скачать или смотреть A Person Needs Lens of Power -5.5D & +1.5D | Find Focal Length | Class 10 Numerical

A Person Needs Lens of Power -5.5D & +1.5D | Find Focal Length | Class 10 Numerical

In this video, we will solve an interesting and practical optics problem related to lens powers. The problem involves a person who requires a lens of power -5.5 D for correcting his distant vision and a lens of power 1.5 D for correcting his near vision. find the focal length of lens used for correcting his distant and near vision.
This type of question is commonly asked in Class 10 Science exams, and understanding it will help students tackle similar problems with confidence.
Here, we not only calculate the lens powers but also find the nature of each lens (concave or convex) and their corresponding focal lengths. This step-by-step explanation helps students clearly understand the concepts behind vision defects such as myopia (nearsightedness) and hypermetropia (farsightedness), and how lenses correct them.

The video covers:

1. Calculating the focal length from the lens power.

2. Understanding how these lenses help correct distant and near vision.

3. Applying the concepts to solve similar numerical problems easily.

Stay tuned for more solved examples, step-by-step explanations, and tricks that make learning Science easy and interesting.

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