IBDP Physics Specimen paper 2025 Paper 1A (MCQ) | Unwrapping Paper 1 by Monit Sir - Eduxcite Classes

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IBDP Physics Paper 1 MCQ

IBDP Physics:

IA Physics IBDP

AS & A Level 9702 Physics:

IGCSE Physics 0625 Previous year paper:

AS & A Level 9709 Mechanics:

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[ConvergingIB]

Last 2 questions both have mistakes in the solution. In 39 you realised that it should be eV_1 later, but the reason it wasnt like that to start with was because the work function is equal to hf minus the max kinetic energy, which is not the stopping voltage, rather e times the stopping voltage. In 40 you forgot to convert MeV to eV and then to joules, so plugging in the expression you ended up with at the end does not give the correct answer. Other than that great video :)

[cherfanegeorges]

hello in q4 i cant find the equation I=1/2MR^2. should it be memorized?