The absorptivity of black body equals to

Sail E0 Webinar

Question

The absorptivity of black body equals to

Options:

A . 2

B . 1

C . 3

D . 4

Answer: Option B
Answer: (b).1

Was this answer helpful ?

Next Question

Submit Solution

More Questions on This Topic :

Question 1. Choose the false statement....

Question 2. A 100 W light bulb has a tungsten filament (emissivity = 0.30) which is required to operate at 2780 K. If the bulb is co....evacuated, calculate the minimum surface area of the tungsten filament

Question 3. A gray body (E = 0.8) emits the same amount of heat as a black body at 1075 K. Find out the required temperature of the ....K. Find out the required temperature of the gray body

Question 4. For a hemisphere solid angle is measured as....

Question 5. The value of solar constant varies between....

Question 6. The heat energy absorbed by a known area in a fixed time is determined with the help of an instrument called....

Question 7. The total amount of heat energy received by the sphere of radius r is....

Question 8. The temperature of the photosphere, referred to as the effective temperature of the sun, is usually taken as....

Question 9. Amount of heat energy radiated by unit surface of the sun in the same time workout as Take, R = mean distance of earth f....earth from the sun and r = radius of sun

Question 10. The approximate distribution of the flow of sun’s energy to the earth’s surface is....

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