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Important Questions

Ray Optics and Optical Instruments

Telangana Open School (TOSS) · Class 12 · Physics

Most important questions from Ray Optics and Optical Instruments for Telangana Open School (TOSS) Class 12 Physics board exam 2026. MCQs, short answer, and long answer questions with marks.

46 questions25 flashcards4 concepts

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46 Questions·
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Sample Questions

1multiple choice
1 marks

Which part of the human eye determines the near point?

Show answer

Ciliary muscles

The ciliary muscles adjust the focal length of the eye lens, allowing the eye to focus on nearby objects. The near point depends on their ability to contract.

2multiple choice
1 marks

What is angular magnification?

Show answer

The ratio of the angle subtended by the image at the eye to the angle subtended by the object

Angular magnification, also called magnifying power, compares how large an object appears through an instrument versus with the naked eye.

3multiple choice
1 marks

In normal adjustment of a simple microscope, where is the image formed?

Show answer

At infinity

In normal adjustment, the image is formed at infinity so that the eye is least strained while viewing.

4multiple choice
1 marks

Which of the following is NOT a use of a simple microscope?

Show answer

Viewing distant stars

A simple microscope is used to magnify small nearby objects. Distant objects like stars require telescopes.

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Frequently Asked Questions

What are the important topics in Ray Optics and Optical Instruments for Telangana Open School (TOSS) Class 12 Physics?
Ray Optics and Optical Instruments covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Ray Optics and Optical Instruments — Telangana Open School (TOSS) Class 12 Physics?
Understand the core concepts first, then work through the 46 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Ray Optics and Optical Instruments?
There are 46 practice questions available for Ray Optics and Optical Instruments. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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