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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: - Two masses of 9 g and 6 g are connected with a string which is passing over a frictionless
- An open pipe resonates with a tuning fork of frequency 500 Hz. It is observed
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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
- Two masses of 9 g and 6 g are connected with a string which is passing over a frictionless
- An open pipe resonates with a tuning fork of frequency 500 Hz. It is observed
- In an AC circuit the potential differences across an inductance and resistance joined
- A juggler maintains four balls in motion,making each of them to rise
- The emission line of Lyman corresponds to the absorption line in laboratory temperature
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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