Complete GATE XL 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 124–125 of 125. Imported answers require review unless explicitly marked reviewed.

Paper practice 125 questionsPage 42 of 42

Question 19

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XL-UNAT2 marksNeeds review
A microbial sample taken at 10 AM contained 1x10⁵ CFU/mL. The count reached to 1x10¹⁰ CFU/mL at 8 PM of the same day. The growth rate (h⁻¹) of the microorganism would be ______.(up to two decimal points)

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Question 20

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XL-UNAT2 marksNeeds review
The rate of heat transfer per unit area from a metal plate is 1000 W m⁻². The surface temperature of the plate is 120°C and ambient temperature is 20°C. The convective heat transfer coefficient (W m⁻² °C⁻¹) using the Newton’s law of cooling will be ______.

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