# 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 star explodes in outer space.

Which waves from the exploding star do not reach the Earth?
3. The pitch of a sound is determined by its _________.
4. Which of the following is the unit for frequency?
5. Which of the following is the speed of a transverse wave?
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. When water waves move from a deeper to a shallower region, ______________.
8. Which of the following does not produce a sound wave?
9. The wavelength of a wave is ___________.
10. Which application uses microwaves?

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

1. thanks for revision

2. I didn’t see my result

3. Amazing

4. I didn’t understand the 9th mcq, i need explanation, there should be an explanation box

• 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.

• i di’nt see my results

• Enter ur email

5. Good for revision

6. I scored 3 on 10 and my exam is tmrw 2/12/18 the day when the earth will be shook this day will be known as the day of being stupid

7. 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