Waves and optics practice.
Oscillations, wave motion, sound, and how light travels through lenses and mirrors. Every question has an explanation.
- 36questions
- 4topics
- 2exams
Waves and optics in Japan
Practise waves and optics with the exams you can take in Japan.
All waves and optics topics.
Each topic opens a list of questions with explanations. Choose the exam you are preparing for.
Waves and Sound
16 questions across 1 exam
Atoms and Light
8 questions across 1 exam
Ray optics
7 questions across 1 exam
Oscillations
5 questions across 1 exam
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Real questions, worked answers.
- Waves and Sound · EJU JapanA siren emitting 600 Hz moves at 68 m/s directly towards a stationary listener. Taking the speed of sound as 340 m/s, what frequency does the listener…See the answer and explanation →
- Atoms and Light · EJU JapanA photon has frequency 7.5 x 10 14 Hz. Using h = 6.6 x 10 -34 J s, what is its energy?See the answer and explanation →
- Ray optics · IB DiplomaAn object is placed 30 cm in front of a convex lens of focal length 10 cm. At what distance from the lens (in cm) is the image formed?See the answer and explanation →
Test yourself.
Timed mock tests
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- Are the waves and optics questions free?
- Yes. Every question, explanation, mock test and flashcard deck is free, with no plans or paywalls.
- Which exams include waves and optics?
- EJU Japan, IB Diploma. Pick a topic above, then the exam you are preparing for.