Practice MCQs For Waves, Light, Lens & Sound

This quiz contains practice questions for GCE ‘O’ level topics: General Waves Properties, Reflection and Refraction Of Light, Converging Lens, Electromagnetic spectrum, Sound. There are explanations for some of the questions after you submit the quiz. If you could not figure out why a particular option is the answer, feel free to drop a comment below or ask a question in ‘O’ & ‘A’ Level Discussion section of the forum. If you wish to contribute questions to this quiz, please contact us.

The quiz comprises of 10 questions, which are randomly selected from a large pool of questions. After completion, you can refresh the page and try the quiz again for a new set of 10 questions.

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1. Which option shows parts of the electromagnetic spectrum in order of increasing frequency?
2. What is meant by the term wavefront?
3. Which of the following is the speed of a transverse wave?
4. The speed of sound in air, water and steel is different. Which of the following sequence, showing the speed of sound in ascending order, is correct?
5. Which of the following is/are the properties of electromagnetic waves?

A. All electromagnetic waves have a speed of $3 \times 10^{8} \, \text{m s}^{-1}$ in vacuum.

B. All electromagnetic waves are transverse waves.

C. All electromagnetic waves can be seen by the naked eye.
6. Which of the following is the unit for frequency?
7. Which characteristics describe an image formed in a plane mirror?
8. Which of the following are the properties of a plane mirror image?

A. The image is the same size as the object.

B. The image is virtual.

C. The image is inverted.
9. The loudness of a sound is determined by its _________.
10. Three rays of light are incident on the boundary between a glass block and air.

The angles of incidence are different.

possible critical angleWhat is a possible critical angle for light in the glass?


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