Qualification > Sciences
paper 1 physics HERE ONLY~!!!!!!!
Ghost Of Highbury:
thermal capacity = mass * specific heat capacity
specific heat capacity = heat received / (mass * temp change)
if the temp change is the least the specific heat capacity will be the greatest and therefore the thermal capacity will be the greatest
thisishard:
answer me!! >:(
nid404:
--- Quote from: eddie_adi619 on June 09, 2009, 04:28:01 pm ---ohh tks
cud this be the possible explanation
V = I*R
I = V/R
R decreases - I increases
when I increases V increases too///
(i don't think so)
--- End quote ---
what r trying to explain??
@thisishard: pls be patient im not a robot.
Ghost Of Highbury:
@nid - its k...i guess i'm wrong...thanks anyway
@ thisishard - i think the wavelength increases because the frequency doesn't change
speed = frequency * wavelength
speed increases - frequency constant - wavelength increases...
nid404 can help u
i have few problems in these type of questions too
nid404:
--- Quote from: thisishard on June 09, 2009, 04:27:14 pm ---may/june 2007 question 20 what should i do to answer these kind of questions?
--- End quote ---
when the wave moves from shallow water to deep water, wavelength increases and the wavefronts move towards the normal. So the ans is C.
Tip-try drawing a normal to the wavefront and check whether refraction is towards the normal or away. if towatds then water is deeper, if away then waves have moved into shallow water
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