The unit of Stefan's constant σ is Options: A . &nbspWm−2K−1 B . &nbspWm2K−4 C . &nbspWm−2K−4 D . &nbspWm−2K4

Answer: Option C : C Stefan's law is E = σ ( T 4 ) ⇒ σ = E T 4 where, E = E n e r g y A r e a × T i m e = W a t t m 2 σ = W a t t − m − 2 K 4 = W a t t = m − 2 K − 4

The unit of Stefan's constant σ is

Question

The unit of Stefan's constant

σ

Options:

A . Wm−2K−1

B . Wm2K−4

C . Wm−2K−4

D . Wm−2K4

Answer: Option C
:
C
Stefan's law is

E = σ (T^{4}) \Rightarrow σ = \frac{E}{T^{4}}

where,

E = \frac{E n e r g y}{A r e a \times T i m e} = \frac{W a t t}{m^{2}}

σ = \frac{W a t t - m^{- 2}}{K^{4}} = W a t t = m^{- 2} K^{- 4}

Was this answer helpful ?

Next Question

Submit Solution

More Questions on This Topic :

Question 1. Two quantities A and B have different dimensions. Which mathematical operation given below is physically meaningful....

Question 2. Select the pair whose dimensions are same....

Question 3. A dimensionally consistent relation for the volume V of a liquid of coefficient of viscosity η flowing per second ....and having a pressure difference P across its end, is

Question 4. The velocity v (in cm / sec) of a particle is given in terms of time t(in sec) by the relation v = α t + bt+c ; th....bt+c ; the dimensions of a, b and c are

Question 5. If velocity v, acceleration A and force B are chosen as fundamental quantities, then the dimensional formula of angular ....momentum in terms of v, A and F would be

Question 6. If P represents radiation pressure, c represents speed of light and Q represents radiation energy striking a unit area p....integers x,y and z such that PxQyCz is dimensionless, are

Question 7. Two quantities A and B have different dimensions. Which mathematical operation given below is physically meaningful?....

Question 8. The equation (P+av2) (v-b) = constant. If P and V are the pressure and volume, the C.G.S units of a is....

Question 9. Young's modulus of a material has the same units as....

Question 10. The unit of LR is (where L= inductance and R= resistance) ....

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

DSP Combined 1 Free Revision Test SAIL JO E-0

GPOE / GPA Combined 1 Free Revision Test SAIL JO E-0

BSP Plant Specific Review Test SAIL JO E-0

BSL Combined 1 Free Revision Test SAIL JO E-0

GFM Combined 1 Free Revision Test SAIL JO E-0

Submit Solution

More Questions on This Topic :

Latest Videos

Latest Test Papers