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Biology problem .....
I am not able to understand the process of accommodation. Please help me understand it.
I am not able to understand the process of accommodation. Please help me understand it.
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Physics, Chemistry and Biology: Post your doubts here!
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Scalars only display the magnitude that is a numerical value , for eg 98m or 100m/s
BUT
Vector quantities display both the magnitude and the direction , for eg 10m/s in North Direction.
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Accomodation in terms of the eye is how your eye accomodates itself when there is an external change.
For eg, while in a sunlit garden, lots of light will enter your eye and can spoil it's funtioning. So the pupil of the eye becomes small so that less light enters. Radial muscles relax. Circular muscles contract. R=R. C=C. All in bright light.
The complete opposite happens in dim light.
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Guys in ATP PHYSICS 0625 without mentioning in the question how can we knw which length to measure in mm or cm? please help
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there might be some measurement given b4 and if nt it depends upon us dat which unit to use
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What's ATP Physics? Atomic?
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alternative to practical paper 6
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Okies
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at Q the circut included the battery through which the capaciter is being charged whereas at P the circit consists of a conducter , and a capaciter and so the capaciter is discharged
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No it doesnt thats what! -.- check out MJ 2008 q4bii.. no indication what so ever! and the whole of the question got wrong of mine jus cuz i wrote in cm.
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http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Chemistry (0620)/0620_s05_qp_1.pdf
Q2 why B??
isnt the stop clock wll be used in measuring chane in temp
Q2 why B??
isnt the stop clock wll be used in measuring chane in temp
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lsn. if my ans comes 3.7 cm in physics atm in a measurement, can we round off to nearest 10? like to 4?
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yeah bt we shd always round off at da final ans to get accuracy
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http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Chemistry (0620)/0620_s08_qp_1.pdf
Q15 why isnt it an endothermic reaction , markscheme says ans C how????
Q15 why isnt it an endothermic reaction , markscheme says ans C how????
A stop clock is used to measure changes throughout time. Over here, he is measuring the change in temperature, which can only be measured using a thermometer, and not a stopwatch
This reaction is a neutralization reaction. And all neutralization reactions are exothermic and not endothermic
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but there is a rise in temperatre shown wt abt dat
Exothermic reactions are reactions which release heat causing a temp rise in the surroundingsbut there is a rise in temperatre shown wt abt dat
Endothermic reactions are reactions which absorb heat from the surroundings, causing a temp drop in the surroundings