Consider a beam of monochromatic radiation at wavelength λ that enters a layer of absorbing gas. As the beam passes through the gas layer, its intensity is given by

d I λ X = – 2 K λ I λ X d x

d I λ X = – 3 K λ I λ X d x

d I λ X = – 4 K λ I λ X d x

Explore topic-wise MCQs in Heat Transfer Questions and Answers.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.	Consider a beam of monochromatic radiation at wavelength λ that enters a layer of absorbing gas. As the beam passes through the gas layer, its intensity is given by
A.	d I λ X = – K λ I λ X d x
B.	d I λ X = – 2 K λ I λ X d x
C.	d I λ X = – 3 K λ I λ X d x
D.	d I λ X = – 4 K λ I λ X d x
Answer» B. d I λ X = – 2 K λ I λ X d x

Discussion

2.	Consider a beam of monochromatic radiation at wavelength λ that enters a layer of absorbing gas. As the beam passes through the gas layer, its intensity
A.	Decreases
B.	Increases
C.	Become twice
D.	Remains same
Answer» B. Increases

Discussion