Qualification > Sciences

physics help needed........plz

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ashwinkandel:

--- Quote from: -L- on October 02, 2010, 05:42:38 pm ---6 significant figures. You ignore the last 0.
Usually its to 3.

--- End quote ---
ending zero after decimal point is significant , isn't it?

iluvme:
You mean the last zero?
Yes.

ashwinkandel:
if the last digit was significant then why did u say 6 s.f. there should have been 7 isn't it? and you have said ignore last 0. how can we ignore it if it is significant?

iluvme:

--- Quote from: ashwinkandel on October 02, 2010, 06:56:10 pm ---if the last digit was significant then why did u say 6 s.f. there should have been 7 isn't it? and you have said ignore last 0. how can we ignore it if it is significant?

--- End quote ---

Damn.My mistake, No it is not significant. Sorry.

Deadly_king:

--- Quote from: -L- on October 02, 2010, 07:03:31 pm ---Damn.My mistake, No it is not significant. Sorry.

--- End quote ---
Nope......ashwin is right there. Indeed the number is correct to 7 sf.

Since the zero has been written and is after decimal point, it is certainly significant.

Otherwise the last zero would not have been written to form a number correct to 6 sf.

I apologise for my mistake :)

Example : Express 1.99 correct to 2sf ----> 2.0

The zero counts as a significant figure.

I had already stated this example before  :P

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