A body cools in 7 minutes from 60-o C to 40-o C- If the temperature of surrounding is 10-o C- the temperature after next 7 minutes will be -32-o C38-o C22-o CNone of these

Question

A body cools in  7 minutes from 60-o C to 40-o C- If the temperature of surrounding is 10-o C- the temperature after next 7 minutes will be -32-o C38-o C22-o CNone of these

Toppr Admin · Accepted Answer

From newton-apos-s law of cooling

A body cools in $7$ minutes from $60^{o} C$ to $40^{o} C$ . If the temperature of surrounding is $10^{o} C$ , the temperature after next $7$ minutes will be :
$32^{o} C$
$38^{o} C$
$22^{o} C$
None of these

From newton's law of cooling

A body cools in 7 minutes from 60oC to 40oC. If the temperature of surrounding is 10oC, the temperature after next 7 minutes will be :32oC38oC22oCNone of these

From newton's law of cooling

A body cools in $7$ minutes from $60^{o} C$ to $40^{o} C$ . If the temperature of surrounding is $10^{o} C$ , the temperature after next $7$ minutes will be :
$32^{o} C$
$38^{o} C$
$22^{o} C$
None of these