According to Newton's law of cooling, th...

According to Newton's law of cooling, the rate of cooling of a body is proportional to `(Delta theta)^n`, where `Delta theta` is the difference of the temperature of the body and the surroundings, and n is equal to

Three

Four

One

Two

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

HEAT TRANSFER & THERMAL EXPANSION
MOTION|Exercise Exercise - 3 Section-A|21 Videos
HEAT - 1
MOTION|Exercise EXERCISE -4 (Level - II) Previous Year | JEE Advanced|22 Videos
HEAT-2
MOTION|Exercise EXERCISE-4 (LEVEL-II)|30 Videos

Similar Questions

Explore conceptually related problems

According to Newton’s law of cooling, the rate of cooling of a body is proportional to (Deltatheta)^(n) , where Deltatheta is the difference of the temperature of the body and the surrounding, and n is equal to :

Ac cording to Newton's law of cooling, the rate of cooling of a body is proportional to (Delta theta)^(n) , where Delta theta is the difference of the temperature of the body and thae surrounding. What is the value of n out of 4,3,2,and 1?

According to ‘Newton’s Law of cooling’, the rate of cooling of a body is proportional to the

As difference of temperature of body and surroundings increases, rate of cooling

Newton’s law of cooling says that the rate of cooling of a body is proportional to the temperature difference between the body and its surrounding when the difference in temperature is small. (a) Will it be reasonable to assume that the rate of heating of a body is proportional to temperature difference between the surrounding and the body (for small difference in temperature) when the body is placed in a surrounding having higher temperature than the body? (b) Assuming that our assumption made in (a) is correct estimate the time required for a cup of cold coffee to gain temperature from 10^(@)C to 15^(@)C when it is kept in a room having temperature 25^(@)C . It was observed that the temperature of the cup increases from 5^(@)C to 10^(@)C in 4 min

Assertion: According to Newton's law of cooling, the rate of loss of heat, -dQ//dt of the body is directly proportional to the difference of temperature. Reason :This law holds for all type of temperature differences.

MOTION-HEAT TRANSFER & THERMAL EXPANSION -Exercise - 3 Section-B

Which of the following is more close to a black body ?
Text Solution
|
Infrared radiation is detected by
Text Solution
|
Two spheres of the same material have radii 1m and 4m and temperatures...
Text Solution
|
The earth radiates in the infra-red region of the spectrum. The spectr...
Text Solution
|
According to Newton's law of cooling, the rate of cooling of a body is...
Text Solution
|
If the temperature of the sun were to increase form T to 2T and its ra...
Text Solution
|
A radiation of energy E falls normally on a perfctly refelecting surfa...
Text Solution
|
The temperature of the two outer surfaces of a composite slab consisti...
Text Solution
|
The figure shows a system of two concentric spheres of radii r1 and r2...
Text Solution
|
Assuming the Sun to be a spherical body of radius R at a temperature o...
Text Solution
|
One end of a thermally insulated rod is kept at a temperature T1 and t...
Text Solution
|
A long metallic bar is carrying heat from one of its ends to the other...
Text Solution
|
A long metallic bar is carrying heat from one of its ends to the other...
Text Solution
|
A liquid in a beaker has temperature theta(t) at time t and theta0 is ...
Text Solution
|
If a piece of metal is heated to temperature theta and the allowed to ...
Text Solution
|
Three rods of Copper, Brass and Steel are welded together to from a Y ...
Text Solution
|
Consider a spherical shell of radius R at temperature T. The black bod...
Text Solution
|
A pendulum clock loses 12s a day if the temperature is 40^@C and gains...
Text Solution
|
Statement-1: The temperature dependence of resistance is usually given...
Text Solution
|