A body cools in 7 minute from 60⁰C to 40⁰C. What time, in minute does it take to cool

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.

admin:

Related Questions

  1. Two small spherical shells A and B are given positive charges of 9C and 4C
  2. Water falls from a height of 60m at the rate of 15 kg/s to operate a turbine
  3. The escape velocity of a body on an imaginary planet which is thrice the radius
  4. In the Young’s double slit experiment, a point P on the central bright fringe
  5. Sodium and copper have work function 2.3 eV and 4.5 eV respectively