Physics, Chemistry and Biology: Post your doubts here!

[IGSCE.Geek.]

bio was okay turned out to be better than i expected although -male...... was kinda weird. hey remember about the improvements made on the ....bean? what did you guys write i wrote about cutting to cut the stem of the plant and replace that stem you cut with that specific plant.then it will have the improvements that you need and also same phenotype of the replaced plant. is it right though?

 

[IGSCE.Geek.]

man feel sorry for yeah bro!

not to worry (i think ) our school keeps our statement of entry with our examiner!

 

[sma786]

but in my book INDEX OF REFRACTION= sin i/sin r
but in marking scheme REFRACTIVE INDEX= speed in air/speed in glass

there are two formulas of refractive index/index of refraction =]

 

[EpicLol]

was it paper 3 bio today?

Could someone help me with the basics of practical chemistry and give like answers to repeated questions etc...thx

 

[Manobilly]

was it paper 3 bio today?

Could someone help me with the basics of practical chemistry and give like answers to repeated questions etc...thx

This might help you check for errors hun!
ANy further questions you have you can ask.

 

[sma786]

was it paper 3 bio today?

Could someone help me with the basics of practical chemistry and give like answers to repeated questions etc...thx

u dont know which paper u gave ..?

 

[Manobilly]

Paper 3 bio was today as my friends gave it ,how come you dont know?

 

[sma786]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s09_qp_3.pdf

Question 4 .. please help .. this question is sooo weird !!!

 

[Manobilly]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s09_qp_3.pdf

Question 4 .. please help .. this question is sooo weird !!!

For question 4 you have to use the parrellogram method,check in the book ,they have much info provided in an easy and simple way.It will helo you.

 

[St0cK]

guys, whose chemistry paper 61 exam is 2moro ??? cause mine is at wednesday...

 

[sma786]

guys, whose chemistry paper 61 exam is 2moro ??? cause mine is at wednesday...

The whole world has it on wensday -.- .. written papers r on the same day, just practical papers r on different days ..

 

[always-smile :)]

it's ok they let me in with my iqama
the exam was nice elhamodlelAllah

 

[sma786]

How do we measure a critical angle ? any formula or smthng ?

 

[Yousif Mukkhtar]

How do we measure a critical angle ? any formula or smthng ?

Yeah:
Refractive index= 1/sin C

C is the critical angle.

 

[sma786]

Yeah:
Refractive index= 1/sin C

C is the critical angle.

thanku =]

 

[shamya07]

i'm having big problems with ELECTRICITY with AC and DC current plizzzzz help meee!!!! =)

 

[kainat husain]

q-4-a-i put hot side of the metal wire in beaker then read the temp always put the hot side in the thing u want to measure
q-9-a-ii do 240/6 u will get the number of turns =40:1

thank you

 

[sma786]

i'm having big problems with ELECTRICITY with AC and DC current plizzzzz help meee!!!! =)

Whats your doubt ?

 

[kainat husain]

Please Help
question num 8-b please some one tell how to draw and where please
question num- 11 b c and d
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w05_qp_3.pdf

 

[shamya07]

uhh salaam i'm sorry i myself is not good in physics....