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A body cools in 7 minute from 60⁰C to 40⁰C. What time, in minute does it take to cool from 40⁰C to 28⁰C if the surrounding temperature is 10⁰C? Assume Newton’s law of cooling
Options
(a) 3.5
(b) 11
(c) 7
(d) 10
Correct Answer:
7
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If, an electron in hydrogen atom jumps from an orbit of level n=3 to an orbit
- A car moves from X to Y with a uniform speed v(u) and returns to Y with a uniform speed
- A black body at 227⁰C radiates heat at the rate of 7cals/cm²s. At a temperature
- The e.m.f. of a battery is 2 V and its internal resistance is 0.5 Ω. The maximum
- The maximum and minimum intensities of two sources is 4:1. The ratio of amplitude is
Topics: Properties of Bulk Matter (130)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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