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A photograph of a type of bacteria enlarged 50000 times attains a length of 5 cm. What is the actual length of bacteria?
  • a)
    1000 cm
  • b)
    10−3 cm
  • c)
    10−4 cm
  • d)
    10−2 cm
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A photograph of a type of bacteria enlarged 50000 times attains a leng...
Actual length of the bacteria is 5/50,000 = 0.0001 cm = 10−4 cm
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Most Upvoted Answer
A photograph of a type of bacteria enlarged 50000 times attains a leng...
The actual length of the bacteria can be found by dividing the enlarged length by the enlargement factor.

Actual length = Enlarged length / Enlargement factor

The enlargement factor is 50,000.

Actual length = 5 cm / 50,000 = 0.0001 cm

So, the actual length of the bacteria is 0.0001 cm.

Answer: b) 0.0001 cm
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Community Answer
A photograph of a type of bacteria enlarged 50000 times attains a leng...
5÷50000=0.0001

option (a) is 1000cm and it can happen because the enlarged length is already 5cm
option (b) is 10 to the power –3 which means (-10)×(-10)×(-10)= -1000. And -1000×5=-5000
option (c) is 10 to the power –4 which means (-10)×(-10)×(-10)×(-10)=-10000. And -10000×5=50000


.·. 5÷50000=5÷{10^(–4)×5}=0.0001




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A photograph of a type of bacteria enlarged 50000 times attains a length of 5 cm. What is the actual length of bacteria?a)1000 cmb)10−3cmc)10−4cmd)10−2cmCorrect answer is option 'C'. Can you explain this answer?
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