
At a common temperature, a block of wood and a block of metal feel equally cool or hot. The temperatures of metal and wood are
A. Less than the temperature of the body
B. Equal to the temperature of the body
C. Greater than the temperature of the body
D. Either A or C
Answer
163.5k+ views
Hint: In order to solve this problem we need to understand the rate of heat transfer and thermal equilibrium. The rate of flow of heat is the amount of heat that is transferred per unit of time temperature. Thermal equilibrium relates between two bodies or closed systems. Two objects are said to be in thermal equilibrium if they are in close contact that allows either to gain energy from the other, but no net energy is transferred between them.
Complete step by step solution:
They said that at a common temperature, a block of wood and a block of metal feel equally cool or hot. Then we need to discuss how the temperatures of metal and wood vary. As both the block of metal and the block of wood feel equally cold or hot, their temperatures should be equal to the temperature of the body.
Or else there will be heat flow between the body and either of the blocks. The thermal conductivity of the metal is more than that of the wood, it would either feel hotter or colder than the block of wood.
Hence, option B is the correct answer.
Note: It does not matter whether a solid is made up of conducting and non-conducting material. Given enough time to transmit the heat from the hot side to the cold side, the solid body will reach thermal equilibrium.
Complete step by step solution:
They said that at a common temperature, a block of wood and a block of metal feel equally cool or hot. Then we need to discuss how the temperatures of metal and wood vary. As both the block of metal and the block of wood feel equally cold or hot, their temperatures should be equal to the temperature of the body.
Or else there will be heat flow between the body and either of the blocks. The thermal conductivity of the metal is more than that of the wood, it would either feel hotter or colder than the block of wood.
Hence, option B is the correct answer.
Note: It does not matter whether a solid is made up of conducting and non-conducting material. Given enough time to transmit the heat from the hot side to the cold side, the solid body will reach thermal equilibrium.
Recently Updated Pages
JEE Main 2021 July 25 Shift 1 Question Paper with Answer Key

JEE Main 2021 July 22 Shift 2 Question Paper with Answer Key

JEE Atomic Structure and Chemical Bonding important Concepts and Tips

JEE Amino Acids and Peptides Important Concepts and Tips for Exam Preparation

JEE Electricity and Magnetism Important Concepts and Tips for Exam Preparation

Chemical Properties of Hydrogen - Important Concepts for JEE Exam Preparation

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility, & More

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Displacement-Time Graph and Velocity-Time Graph for JEE

Degree of Dissociation and Its Formula With Solved Example for JEE

Electric Field Due to Uniformly Charged Ring for JEE Main 2025 - Formula and Derivation

Charging and Discharging of Capacitor

Other Pages
JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

NCERT Solutions for Class 11 Physics Chapter 1 Units and Measurements

Units and Measurements Class 11 Notes: CBSE Physics Chapter 1

Motion in a Straight Line Class 11 Notes: CBSE Physics Chapter 2

Important Questions for CBSE Class 11 Physics Chapter 1 - Units and Measurement

NCERT Solutions for Class 11 Physics Chapter 2 Motion In A Straight Line
