Lakshya Education MCQs

Question: The unit of stefan boltzmann constant is
Options:
A. watt/cm3 °K
B. watt/cm4 °K
C. watt2/cm °K⁴
D. watt/cm2 °K⁴
Answer: Option D
Explanation :

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More Questions on This Topic :

Question 1. When absorptivity (α) = 1, reflectivity (ρ) = 0 and transmissivity (τ) = 0, then the body is said to be a
  1.     Black body
  2.     Grey body
  3.     Opaque body
  4.     White body
Answer: Option A
Explanation :
Question 2. The unit of stefan-boltzmann constant is
  1.     Watt/mK
  2.     Watt/m2K2
  3.     Watt/m2K4
  4.     Watt/mK2
Answer: Option C
Explanation :
Question 3. The unit of stefan boltzmann constant is
  1.     watt/cm3 °K
  2.     watt/cm4 °K
  3.     watt2/cm °K⁴
  4.     watt/cm2 °K⁴
Answer: Option D
Explanation :
Question 4. The unit of stefan-boltzmann constant is
  1.     Watt/mK
  2.     Watt/m2K2
  3.     Watt/m2K4
  4.     Watt/mK2
Answer: Option C
Explanation :
Question 5. The unit of stefan boltzmann constant is
  1.     watt/cm3 °K
  2.     watt/cm4 °K
  3.     watt2/cm °K⁴
  4.     watt/cm2 °K⁴
Answer: Option D
Explanation :
Question 6. When absorptivity (α) = 1, reflectivity (ρ) = 0 and transmissivity (τ) = 0, then the body is said to be a
  1.     Black body
  2.     Grey body
  3.     Opaque body
  4.     White body
Answer: Option A
Explanation :

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