For an ideal black body
(A) absorptivity = 1
(B) reflectivity = 1
(C) emissivity = 0
which is true???????
Answer Posted / jayesh
ideal black bodu absorbs whole amt of radiation inserted on it
thus absorbance = 1
as the body absorbs all thing thus reflects none
so reflectivity = 0
now good absorber is always good emitter for the case of black body
emissivity = 1
following this sequence answer is (A)
| Is This Answer Correct ? | 7 Yes | 1 No |
Post New Answer View All Answers
Hi.. Me going to tke test for management trainee(technical) Post I am an chemical engineering student . Can u guide how to prepare for this test.Can u send me test paper pattern..?
what is R1,R2,R3, R4........?
how can I find out a sulfuric acid recovery plant disigner?
hi can anyone tell me some technical questions asked in iocl
can you explain about the design calculations and procedure of boiler
We have some pieces of metals that have been 'powder coated', how does that work?
is extractive distillationӞH
Explain how can one quickly estimate the additional pressure drop to be introduced with more tube passes?
sir, kindly explain to me that how to calculate volume of torrispherical vessel which is used in pharma company ss reactor bottom dish volume. thank u.
my qualification is b.tech- industrial biotech. i was read about many chemical engineering subject as a allied like unit operation, chemical thermodynamics, chemical reaction engineering , mass transfer and separation, downstream processing and principle of chemical engineering. and i have 2 yrs working exprience on in the field of instrumentation and control... and my query is "can i able work as process technologist" and which subject i want conc. more?........
if i added hypo before DM plant so i will affect my resins of anion or cation. if affect it so do prevent what kind of step should be taken to remove hypo before DM inlet?
At what temperature does water have maximum density?
Explain what are some typical applications for glass-lined reactors?
Explain how does a tank-blanketing valve operate?
can anybody give me syallbus of chemical engineering for section engineer in railway.