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Chapter 20 of 29
Important Questions

Electromagnetic Waves

Telangana Open School (TOSS) · Class 12 · Physics

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

53 questions30 flashcards3 concepts

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53 Questions·
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Sample Questions

1multiple choice
1 marks

What is the frequency range of radio waves?

Show answer

500 kHz to 1000 MHz

The frequency range of radio waves is from 500 kHz to 1000 MHz as per the chapter.

2multiple choice
1 marks

Which electromagnetic wave is used for treating certain forms of cancer?

Show answer

X-rays

X-rays are used in the treatment of certain forms of cancer due to their high energy.

3multiple choice
1 marks

What is the primary use of infrared rays in electronic devices?

Show answer

TV remotes

Near-infrared waves are used in TV remotes and other electronic applications.

4multiple choice
1 marks

Which electromagnetic wave has the highest frequency?

Show answer

Gamma rays

Gamma rays have the highest frequency in the electromagnetic spectrum, greater than 10^20 Hz.

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Frequently Asked Questions

What are the important topics in Electromagnetic Waves for Telangana Open School (TOSS) Class 12 Physics?
Electromagnetic Waves 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 Electromagnetic Waves — Telangana Open School (TOSS) Class 12 Physics?
Understand the core concepts first, then work through the 53 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 Electromagnetic Waves?
There are 53 practice questions available for Electromagnetic Waves. 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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Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Telangana Open School (TOSS) Class 12 Physics.