Moderate
0 likes
Question
The coefficient of thermal conduction depends on:
(a) The difference in temperature between the two ends of the conductor
(b) Property of the material of the conductor
(c) The length of the conductor
(d) The area of cross-section of the conductor
WBBSE
Class X
Physical Science
Thermal phenomena
01 Mark
2025
Answer
(b) Property of the material of the conductor
Explanation
The coefficient of thermal conductivity (k) is a property of the material that indicates how easily heat flows through it.
Related Questions
More WBBSE Moderate level questions
1/12
Moderate
562
Q.
How many types of thermal expansion coefficients are there for a liquid?
A.
(c) 2 Explanation: For liquids, two types of thermal expansion coefficients are...
View Question
Moderate
Q.
Find the length of an iron rod at 110°C if at 10°C, the length of...
A.
Initial length (L₁) = 20 cm Initial temperature = 10°C Final temperature...
View Question
Moderate
909
Q.
Define Thermal conductivity. What is the SI unit of Thermal resistance?
A.
Thermal Conductivity is the ability of a material to conduct heat. It...
View Question
Moderate
768
Q.
Define the coefficient of volume expansion of a solid and write its mathematical form.
A.
Definition: The coefficient of volume expansion of a solid is defined as...
View Question
Easy
Q.
Write whether the following statement is True or False: Which physical quantity has the unit...
A.
Coefficient of Thermal Conductivity (Thermal Conductivity)
View Question
Easy
Q.
If coefficient of linear expansion of iron is 1.2 × 10⁻⁵ /°C, then coefficient of...
A.
True Explanation The relationship between the coefficients of expansion for an isotropic...
View Question
Easy
789
Q.
The value of coefficient of linear expansion of solid is the same in celsius scale...
A.
True. OR Diamond > Silver > Iron.
View Question
Easy
838
Q.
What is the unit of conductivity?
A.
a. mho·meter⁻¹
View Question
Easy
Q.
Why are there gaps at regular intervals between consecutive rails in a railway track? State...
A.
Gaps are left between railway rails to provide space for thermal expansion...
View Question
Moderate
Q.
Write down the IUPAC name of the following organic compound:
A.
2-Bromopropane
View Question
Moderate
Q.
What is the number of molecules present in 16 g of O₂ at S.T.P.?
A.
3.01 × 10²³ molecules Explanation Molar mass of O₂ = 16 ×...
View Question
Moderate
Q.
Which parameter remains unaltered during refraction of light? (a) Velocity (b) Amplitude (c) Frequency (d)...
A.
(c) Frequency Explanation When light travels from one transparent medium to another,...
View Question