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 statement is correct?
2. Which of the following is a possible unit for amplitude of a wave?
3. 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.
4. The amplitude of a wave is ____________.
5. The loudness of a sound is determined by its _________.
6. A student stands 50 m from a wall and knocks two wooden blocks together. When the frequency of knocking is 3 knocks per second, the echo of a knock is heard at the instant of the next one.

What is the speed of sound in air?
7. Which characteristics describe an image formed in a plane mirror?
8. The air pressure at sea level is 101,325 Pa. At the centre of a rarefaction of a sound wave in air, the pressure is 91,000 Pa. Which is the most likely pressure at the centre of a compression of the same wave?
9. Which of the following is a possible unit for period of a wave?
10. 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)?

 

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15 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

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

        Reply
  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

    Reply
  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

    Reply

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