Intelligent assessment and revision tools for OCR A Physics
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Take a short multiple-choice quiz to test your knowledge across topics.
Start quizGCSE to AS Transition
A practical guide to the jump from GCSE to AS Physics, with summer prep and worked examples.
Read the guideMoving up from GCSE? Read the GCSE to AS Level Physics transition guide. Looking for revision routes? Start with OCR A Level Physics revision, A Level Physics MCQ practice, or A Level Physics problem solving practice.
Daily Question
Test your physics knowledge with a real daily question. Pick your level and give it a go!
In a lab, two air columns each of length L are set up: Tube A is open at both ends, and Tube B is closed at one end. Tube B is adjusted to its next resonance above its fundamental (second resonance). Which harmonic of Tube A would have the same frequency as Tube B at this setting? Assume the speed of sound is the same in both tubes and ignore end corrections.
In a school lab, a GM tube at fixed distance records a background of 20 counts per minute (cpm). With a sealed iodine-131 source in place at the same geometry, the total count rate at t = 0 is 340 cpm. The isotope’s half-life is 8.0 days. Assuming no change in setup or absorption, what total count rate is expected 24 days later?
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