Tawjihiya Bahrain (Secondary School Certificate) · Physics And Chemistry
Waves, optics and nuclear physics
4 practice questions, each with the answer and an explanation.
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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 4 questions
- A ray in air strikes a transparent material at 45 degrees to the normal and is refracted at 30 degrees. What is the refractive index of the material?
- A wave has frequency 440 Hz and wavelength 0.1 m. What is its speed?
- A ray in air strikes a transparent material at 60 degrees to the normal and is refracted at 30 degrees. What is the refractive index of the material?
- A radioactive sample contains 640 nuclei and has a half-life of 12 days. How many undecayed nuclei remain after 36 days?
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