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Which of these needs a negative exponent in standard form?
ARocket propellant
BMoon distance
CChip wire width
DEarth Sun distance
Answer & Solution
Correct answer: C. Chip wire width
1. A negative exponent appears only for numbers below one.
2. The distances and the mass listed are all large numbers.
3. The diameter of a wire on a computer chip is 0.000003 m.
4. So the answer is the chip wire width.
_Source: NCERT Class 8 Mathematics, Ch 10 'Exponents and Powers'_
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