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Physics: Post your doubts here!

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Constuctive where they intersect, and destructive just draw a line through where one of the waves' wavefronts are exactly in between the wavefronts of the other.
) . ) Like this if you get it lol

wait I don't get the destructive part, is it OX then? Sorry but where is the wavefronts really, I am pretty weak in waves =P
 
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hey can someone please tell me to how many significant figures should we give the answer
 
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hey can someone please tell me to how many significant figures should we give the answer
cie never make up their mind but make sure its two or three some they allow both wrna they allow only one of them but they should be consistant throughout question
 
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hey can someone please tell me to how many significant figures should we give the answer
to be on the safe side keep it 3 s.f. as that is almost always the accepted.. and they might deduct marks for lesser no of significant figures but normally they don't penalize for more number of significant figures except in special cases like absolute errors or such stuff
 
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cie never make up their mind but make sure its two or three some they allow both wrna they allow only one of them but they should be consistant throughout question
You are to judge them by the no. of sig fig in the least count of the raw data (apart from any constants) no. of sf can either by equal to or one more than those of a value having the least no of sf in a calculation
 
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You are to judge them by the no. of sig fig in the least count of the raw data (apart from any constants) no. of sf can either by equal to or one more than those of a value having the least no of sf in a calculation
yes but in the ms some times the raw data has variable sig some of two and some 3 . i become confused then
 

asd

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yes but in the ms some times the raw data has variable sig some of two and some 3 . i become confused then
I guess its the best to work in 3 sig fig, cause thats what we used to do in O levels atleast.
 
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yes but in the ms some times the raw data has variable sig some of two and some 3 . i become confused then

Take the least number of significant figures from the raw data.

do this

When raw data is in 3 and 4sf.

=13.65
≈13.7
 
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