Biology; Chemistry; Physics: Post your doubts here!

[a.abid]

please y dont you just go to google chrome type transformation matrix and see all the types that we will have to learn for exams. gosh havent you tried it before

I have Aaap ko kya masla ho rha hay?Aap ko tou main kuch nai keh rai

 

[A star]

I have Aaap ko kya masla ho rha hay?Aap ko tou main kuch nai keh rai

no i was just giving advice. didnt mean to upset you

 

[a.abid]

no i was just giving advice. didnt mean to upset you

nai u said it in an annoying manner

 

[A star]

nai u said it in an annoying manner

mayb i shouldnt have added the last few words as they show annoyance.

 

[a.abid]

mayb i shouldnt have added the last few words as they show annoyance.

i only said agreed.

 

[A star]

i only said agreed.

naa i meant the person to whom u replied but couldnt find her(that comment)

 

[a.abid]

naa i meant the person to whom u replied but couldnt find him

oh right it was the daredevil girl

 

[Monojit Saha]

in mcq 3 shouldn't the answer be C ? why is it D ?
http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Chemistry (5070)/5070_s03_qp_1.pdf[/quote

IN C the color of the litmus is blue and although ammonia is produced, it is an alkaline gas thus red litmus turns blue__

 

[A star]

?????

 

[MustafaMotani]

it is a very strange method, nevertheless, i will post it, who knows it might help someone!

I know some and they are hell idiotic like ollo, loki, lool etc I know they sound insane

 

[M Haseeb Javed]

Q4/5. Why the pointer reading ammeter/voltmeter is gently tapped before taking a reading?​

Ans: To reduce the friction between the needle and the pivot​

How is that.?​

This refers to inertia. Like it take some energy to move...

 

[a.abid]

I know some and they are hell idiotic like ollo, loki, lool etc I know they sound insane

LOL...

 

[Spidey21]

XCUSE ME!! he electrons of metals are NOT in the orbits. they are delocalised!! that's the whole point of the metals being good conductors because they have a SEA OF ELECtRONS that helps to carry the heat/electricity!

but they can not carry heat ...:|
like i told you
heat passes in metals through conduction now how is it even possible that electrons move in conduction?? in conduction the heat is passed by the vigorous movement of atoms...:|

 

[a.abid]

but they can not carry heat ...:|
like i told you
heat passes in metals through conduction now how is it even possible that electrons move in conduction?? in conduction the heat is passed by the vigorous movement of atoms...:|

r u guys talking abt the MCQ that came?

 

[MustafaMotani]

but they can not carry heat ...:|
like i told you
heat passes in metals through conduction now how is it even possible that electrons move in conduction?? in conduction the heat is passed by the vigorous movement of atoms...:|

spidey u cant help it its truth they conduct heat...
as electrons are mobile they carry heat from hot terminals to cold thats the only reason why meatls are good condutor of heat

 

[a.abid]

spidey u cant help it its truth they conduct heat...
as electrons are mobile they carry heat from hot terminals to cold thats the only reason why meatls are good condutor of heat

Can anyone tell me wat r u ppl talking abt?The MCq that came in physics paper?

 

[MustafaMotani]

Can anyone tell me wat r u ppl talking abt?The MCq that came in physics paper?

yes

 

[Spidey21]

spidey u cant help it its truth they conduct heat...
as electrons are mobile they carry heat from hot terminals to cold thats the only reason why meatls are good condutor of heat

that is because they are good conductors of current not heat...
for heat they use the vigourous vibrating
please go ahead and show me the resource
i spent like an hour or so got nothing but juts the heat transfer due to atoms..:|
please let me know so that i can concede defeat till then

 

[Spidey21]

r u guys talking abt the MCQ that came?

yes we are talking about the mcq that came...

 

[a.abid]

yes

th answer was both vibration of atoms and movement of electrons cuz thats the principle of thermocouple in which electrons flow from hot side to cold end