SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How many significant figures does the following number have:0.002040
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6
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4
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3
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2
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Explanation:
Detailed explanation-1: -Therefore, the number of significant figures that 0.002040 has are 4.
Detailed explanation-2: -2 significant numbers. Zeros before a number is not significant. Zeros to the left of the first nonzero digits in a number are not significant.
Detailed explanation-3: -The last zero is significant because the digit is after decimal. $ 5 $ is always significant because it is a non-zero digit. Hence, there are two significant figures in the $ 0.050 $ .
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