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.

Back To O Level Physics

Back To List of O Level Physics Quiz

Enter email to receive results:

1. When water waves move from a deeper to a shallower region, ______________.

Its wavelength increases.

Its wavelength decreases.

Its frequency decreases.

Its frequency increases.

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)?

10 degrees

0 degrees

20 degrees

40 degrees

3. Which statement is correct?

Infra-red waves have a lower frequency than radio waves.

Gamma rays have a longer wavelength than ultra-violet waves.

X-rays have a higher speed in air than visible light.

Microwaves have a longer wavelength than visible light.

4. Which of the following are always true for sound waves?

A. Sound waves are produced by vibration.

B. Sound waves are longitudinal waves.

C. Sound waves have an approximate speed of 300 m/s

A and C only

B and C only

A and B only

A, B and C

5. 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.

B and C only

A and B only

A only

A, B and C

6. Which of the following is a possible unit for wavelength?

hertz

coulomb

kilometer

metre per second

7. The wavelength of a wave is ___________.

the distance from a crest to a trough.

the distance from the start of a wave to the end of the wave.

the distance from a crest to another crest.

the distance between successive troughs.

8. When light in glass strikes the glass-air interface at an angle of incidence less than the critical angle, which of the following statement is true?

It is totally reflected back into the glass.

It is reflected back along its original path.

It is partially reflected back into the glass.

It totally exits the glass.

9. The loudness of a sound is determined by its _________.

frequency

speed

wavelength

amplitude

10. The period of a wave is _____________.

the time taken for the wave to complete one oscillation.

the distance divided by the speed of the wave.

the time taken for the wave to travel from one point to another.

the frequency of the wave multiply by the wavelength of the wave.

 Loading...

 

Back To O Level Physics

Back To List of O Level Physics Quiz