Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
pglasg74:
--- Quote from: 123456789 on May 25, 2010, 11:08:46 pm ---and ques 32 also plzzzz
--- End quote ---
ill help u wiht this one.. take your room as an example, whne u turn the light on, are aall the bulbs equally bright? yes they are, thats why..
vin ill give u the fuse qn.. here:
"A mains current can safely supply a current of 40 A. A hairdryer takes 2A. It is connected to the circuit by a lead which can safely carry up to 5 A.
Which fuse is best to use in the plug fitted to the hairdryer lead?"
1 A, 3 A, 50 A OR 10 A?
pglasg74:
i dont understand questions like #20 in summer 07.. like i dont get it, isnt wavelength supposed to decrease when they enter deeper, why are they further apart? why is the answer c not b :S:S:S:S
mysteryman:
--- Quote from: ~VIN1094~ on May 25, 2010, 11:11:54 pm ---in those questions about the compass, where shouldnt the needle point?
https://studentforums.biz/index.php/topic,6468.msg225169.html#msg225169
https://studentforums.biz/index.php/topic,6468.msg225177.html#msg225177
and in those questions about the 4 blocks and the temperature changes are given then they ask which one has the greatest thermal capacity. what should i write?
The one having the greatest mass has the greatest thermal capacity
Q 16)
at 0*C both are solid
at 50*C both are liquid
at 100*C and 150*C Benzene is gas
so B
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thanks alot. one more question about the thermal capacity
can you explain why the rest are incorrect in: http://www.freeexampapers.us/IGCSE/Physics/CIE/2006%20Jun/0625_s06_qp_1.pdf question 16
the answer is A
Shazizzzle:
Guys, STOP! ENOUGH! :P
Syed Kazim:
In Beta decay a neutron changes to a proton and an electron. The proton remains in the nucleus and the electron is emitted as a beta-particle. The new nucleus has the same nucleon number, but its proton number increases by one since it has one more proton.
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