engineering recuitment Gujarat Metro JE Mock Test 2023 Heat Transfer Radiation Absorptivity, Reflectivity and Transmissivity
निम्नलिखित तालिका पर विचार करें:
a - अवशोषण; b - परावर्तकता; c - पारेषणता
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कॉलम 1 |
कॉलम 2 |
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1 |
कृष्णिका |
A |
a = 1, b = 0, c = 0 |
|
2 |
अपारदर्शी निकाय |
B |
a = 0, b = 1, c = 0 |
|
3 |
श्वेत निकाय |
C |
a + b = 1, c = 0 |
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4 |
ग्रे निकाय |
D |
a = b = c = स्थिरांक |
1
1 – B; 2 – C; 3 – A; 4 – D
2
1 – A; 2 – C; 3 – B; 4 – D
3
1 – C; 2 – B; 3 – A; 4 – D
4
1 – A; 2 – B; 3 – C; 4 – D