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Author Topic: Physics ppr1 doubts  (Read 2725 times)

Offline moon

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Physics ppr1 doubts
« on: November 11, 2009, 04:20:23 pm »
Plz i need help in NOV. 2006 Q 16, didn't understand how the answer is calculated here....   ??? ???
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Offline Ghost Of Highbury

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Re: Physics ppr1 doubts
« Reply #1 on: November 11, 2009, 04:26:44 pm »
22cm - 100'C

2cm - 0'C

that means 22-2 cm - 100'C

20cm - 100'C

1cm - 5'C

now,

the reading in the thermometer is 8cm

which is 6cm above from 2

1cm - 5'C
6cm - 30'C

Answer : C, 30'C

hope u understood
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Offline moon

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Re: Physics ppr1 doubts
« Reply #2 on: November 11, 2009, 04:40:14 pm »
ok, I understood that question now $ thanx a lot 4 helping me....
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Offline Ghost Of Highbury

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Re: Physics ppr1 doubts
« Reply #3 on: November 11, 2009, 04:48:11 pm »
welcome
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Offline nits94

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Re: Physics ppr1 doubts
« Reply #4 on: November 12, 2009, 10:23:59 am »
hey I have a problem... please help me with this.. Thanks :)
 
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Offline @d!_†oX!©

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Re: Physics ppr1 doubts
« Reply #5 on: November 12, 2009, 11:24:31 am »
 :P :P
no idea nits...sorry....if any1 knows plss help her and give a reason too..... :)
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Offline @d!_†oX!©

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Re: Physics ppr1 doubts
« Reply #6 on: November 12, 2009, 11:57:12 am »
hey guys...
does any1 over here know that why is the anode in a CRO cool??
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Offline Ghost Of Highbury

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Re: Physics ppr1 doubts
« Reply #7 on: November 12, 2009, 11:57:24 am »
guess it shud be A

 any how the current is (direction) the magnetic field is still dere na, so it attracts the soft iron
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Offline Ghost Of Highbury

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Re: Physics ppr1 doubts
« Reply #8 on: November 12, 2009, 11:59:43 am »
Quote from: @d!_†oX!© on November 12, 2009, 11:57:12 am
hey guys...
does any1 over here know that why is the anode in a CRO cool??

anode is really cool man!

he wears cool shades all the time, a cigar stuck between his lips looks so cool!!

also, he loves chocolate milkshake , with ice cubes!.. isnt that cool!! whoa!
« Last Edit: November 12, 2009, 12:02:29 pm by A@di »
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Offline @d!_†oX!©

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Re: Physics ppr1 doubts
« Reply #9 on: November 12, 2009, 12:07:08 pm »
aadi!!!!!
dude m serious....lol..for the first time:P
pata hai ya nahi bhai??
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Offline Saladin

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Re: Physics ppr1 doubts
« Reply #10 on: November 12, 2009, 12:11:19 pm »
Wait until u meet cathode...

he wears CAT boots and gear.

He got everyone jumpin up and down whenever, they see him, from copper ions to any other positive ion!!

he got this amazing lamboghini baybe... and he knows how to treat it good..

he is the master of all odes.

hahahhehe ;D :D
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Offline astarmathsandphysics

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Re: Physics ppr1 doubts
« Reply #11 on: November 12, 2009, 12:12:26 pm »
It is A. Iron is easily magnetized so is always attracted to a magnetic field
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Offline @d!_†oX!©

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Re: Physics ppr1 doubts
« Reply #12 on: November 12, 2009, 12:13:09 pm »
yeah i get it...so u guys in a really cool mood today huh??!!
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Offline astarmathsandphysics

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Re: Physics ppr1 doubts
« Reply #13 on: November 12, 2009, 12:13:53 pm »
The anode should be warm. Electrons are emitted from the anode, aided by the anode being heated.
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Offline @d!_†oX!©

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Re: Physics ppr1 doubts
« Reply #14 on: November 12, 2009, 12:15:07 pm »
sir but i remember electrons being emitted from the cathode....
and i check the answer...it says that the anode is cool ???
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