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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: - The rms current in an AC circuit is 2 A. If the wattless current be √3 A,
- The escape velocity from the earth is Ve. The escape velocity from a planet
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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
- The rms current in an AC circuit is 2 A. If the wattless current be √3 A,
- The escape velocity from the earth is Ve. The escape velocity from a planet
- As a result of interference of two coherent sources of light, energy is
- The energy required to charge a parallel plate condenser of plate separation d
- The distance travelled by a particle starting from rest and moving with an acceleration
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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