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 of the following are properties of a plane mirror image?

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

B. The image is upright.

C. The image is laterally inverted.
2. A beam of light hits a mirror at an angle. When the mirror is rotated by 10 degrees, by what angle does the reflected beam turn (as compared to the original reflected beam)?
3. The wavelength of a wave is ___________.
4. The period of a wave is _____________.
5. A lens forms a blurred image of an object on a screen.

lens pic 1How can the image be made sharp and in focus on the screen?
6. What happens to light as it passes from glass into air?
7. 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.
8. What happens to light as it passes from glass into air?
9. Which of the following does not produce a sound wave?
10. Which of the following does not produce a sound wave?

 

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