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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: - Efficiency of a Carnot engine is 50% when temperature of sink is 500K. In order
- At the first minimum adjacent to the central maximum of a single-slit diffraction
- A pan is suspended from a steel wire. Weights are slowly put on the pan
- If a body is rolling on the surface, its total energy will be
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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
- Efficiency of a Carnot engine is 50% when temperature of sink is 500K. In order
- At the first minimum adjacent to the central maximum of a single-slit diffraction
- A pan is suspended from a steel wire. Weights are slowly put on the pan
- If a body is rolling on the surface, its total energy will be
- A photocell employs photoelectric effect to convert
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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