CIE/IGCSE/Physics - half life exam questions - worked solutions

[@perseus_1945]

Thanks! I got my first paper in 50 minutes, wish me luck XD

[@Unmknowmn]

I have my retake in 1 hour lmao

[@7alamohammad819]

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[@adannew1831]

I can't see the questions,you need to bring your camera closer to the questions.

[@sofiyyahnadhirah3798]

thank you! this is very helpful

[@clevereagle1911]

I love your handwriting bruv!! 🥲🥲

[@BadushOhn]

This was really helpful 🙏🏻

[@bikusmoto59]

Thank you. Handwriting could be better.

[@hamsabdelhameed8544]

Thank you so much, you really helped me alot 😭❤️

[@hamna.902]

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[@AzanShahzad161]

Thnx

[@serahaleyabastin]

thank you so much

[@shivamsingh7389]

for 1 d. can the second point simply be protective gear? instead of listing the gear?

[@thee__brownkid5561]

Thanks so much

[@fujjershahzad5461]

can you share this paper document

[@ParanormalVoid]

Wow.. thanks a lot!!

[@deeshapatel4809]

this was so helpful ty

[@patty5807]

this was really helpful!

[@rithvikmallavalli1820]

Sorry, not tryna diss or spread hate, but in in Q2C you went wrong. As the 37 counts/min in already without background raddiation

[@zeyadtarek5660]

its Q2B. no she did it correct - The graph shows background radiation plus radioactive sample radiation. So she got 37 by subtracting 15 from the initial value (52)

[@tokyo7671]

nah she did it right, better recheck urself mate

[@a.s.l711]

@@tokyo7671 but i dont understand why they have to add back the background radiation after they got 18.5....

[@brunofacee]

that’s because the graphs shows the reading WITH the background radiation (18.5)