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Compare quantities on a log scale

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The table contains generated cases. Each displayed log value is the base-10 logarithm of the test pulse energy, measured in microjoules

Generated test pulse energy data recorded on a base-10 log scale
CasePulse E34Pulse E31Pulse E63Pulse E17
log₁₀(test pulse energy in microjoules)?\(1\)\(4\)\(6\)
test pulse energy (microjoules)100,000,0001010,0001,000,000
(a)1 mark

Find the factor by which the test pulse energy for Pulse E17 exceeds that for Pulse E63. Give the exact factor

(b)1 mark

Complete the missing logged value for Pulse E34