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 type of wave is used to send telephone signals to and from a satellite?
2. The frequency of a wave is ___________.
3. The diagram shows waves travelling on the sea.

Which points are one wavelength apart?
4. The pitch of a sound is determined by its _________.
5. Which statement about the speed of sound is correct?
6. 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.
7. Which of the following is a possible unit for wavelength?
8. Which of the following is a possible unit for period of a wave?
9. Which line in the table correctly shows examples of transverse and longitudinal waves?

10. Water waves refract at a boundary between deep water and shallow water.

What is the effect on the frequency, wavelength and speed of the waves at the boundary?
AChangesChangesStays the same
BChangesStays the sameStays the same
CStays the sameChangesChanges
DStays the sameStays the sameChanges


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13 thoughts on “Practice MCQs For Waves, Light, Lens & Sound”

    • the answer is A because when the ball hit the floor , the particles of air hits the ball and the floor, this causes a longitudinal wave to be produced and this wave travels from where the ball hit the ground to our ears thus we hear it

      • Actually its wrong because particles do not move its just their vibration which transfers in form of longitudinal wave.

  1. I am unable to get a new set of MCQs. Even after refreshing the page I keep getting the same MCQs that I have already attempted

  2. I didn’t get the last MCQ. Like how can be waving your hand be a form of wave?
    And why can’t it be 1&4 because when you throw a stone, it would bang the window and would produce sound waves and shouting is also a kind of sound wave


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