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Which of the following is an example of ideal black body?
Options
(a) Kajal
(b) Black board
(c) A pin hole in a box
(d) None of these
Correct Answer:
A pin hole in a box
Explanation:
A pin hole in a box is an example of black body. The pin hole allows radiations of different wavelengths to enter the box. Inside box all the radiations are absorbed. No waves are permitted to escape. Hence it acts like an ideal black body.
Related Questions: - A body of mass m=3.513 kg is moving along the x-axis with a speed of 5 m/s
- In electromagnetic spectrum, the frequencies of γ-rays and x-rays and ultraviolet rays
- A choke is preferred to a resistance for limiting current in AC circuit because
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Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body of mass m=3.513 kg is moving along the x-axis with a speed of 5 m/s
- In electromagnetic spectrum, the frequencies of γ-rays and x-rays and ultraviolet rays
- A choke is preferred to a resistance for limiting current in AC circuit because
- Calculate the charge on equivalent capacitance of the conbination shown in figure
- According to Hook’s law, force is proportional to
Topics: Properties of Bulk Matter (130)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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