A body takes 4 min. to cool from 61° C to 59° C. If the temperature of the surroundings is 30° C, the time taken by the body to cool from 51° C to 49° C is:

Properties of Solids and Liquids: JEE Main 2021 Physics question

JEE Main 2021 · 27 Jul, Morning shift · Q7973

JEE Main 202127 Jul, Morning shiftPhysicsEasyProperties of Solids and Liquids184× since 2002

A body takes 4 min. to cool from 61

^\circ

C to 59

^\circ

C. If the temperature of the surroundings is 30

^\circ

C, the time taken by the body to cool from 51

^\circ

C to 49

^\circ

C is :