Lens Makers Formula
High-Yield Trend
Questions 4 MCQs
When a biconvex lens of glass having a refractive index of is dipped in a liquid, it acts as a plane sheet of glass. The liquid must have a refractive index:
| 1. | equal to that of glass. |
| 2. | less than one. |
| 3. | greater than that of glass. |
| 4. | less than that of glass. |
| 1. | 2. | ||
| 3. | 4. |
Two similar thin equi-convex lenses, of focal length each, are kept coaxially in contact with each other such that the focal length of the combination is . When the space between the two lenses is filled with glycerin which has the same refractive index as that of glass then the equivalent focal length is . The ratio will be:
| 1. | 2. | ||
| 3. | 4. |
(Assume that all layers are thin)
| 1. | 2. | ||
| 3. | 4. |
Preparing Lens Makers Formula for NEET
Lens Makers Formula is a specific sub-topic that frequently appears in the NEET examination. Understanding the underlying principles and practicing targeted questions is key to mastering this concept.
The questions compiled above are previous year questions (PYQs) directly related to Lens Makers Formula. Practicing these specific questions helps you understand the difficulty level and the examiner's approach to this topic.
Topic Frequently Asked Questions
Is Lens Makers Formula a high-weightage topic?
You can refer to the priority and consistency badges at the top of this page. High priority topics should be thoroughly revised multiple times before the exam.
Should I memorize the solutions?
No, it is highly recommended to understand the core concept and methodology behind each solution rather than memorizing them, as exact questions are rarely repeated, but the concepts definitely are.