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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 bomb of mass 16 kg at rest explodes into two pieces of masses of 4 kg and 12 kg.
- Current flows in semi-conductors through
- A thermally insulated rigid container contains an ideal gas heated by a filament
- A force of 5 N is acting on an object. Displacement of object is 10 m and the work done
- When ₉₀Th²²⁸ transforms to ₈₃Bi²¹², the number of emitted α and β particles
Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bomb of mass 16 kg at rest explodes into two pieces of masses of 4 kg and 12 kg.
- Current flows in semi-conductors through
- A thermally insulated rigid container contains an ideal gas heated by a filament
- A force of 5 N is acting on an object. Displacement of object is 10 m and the work done
- When ₉₀Th²²⁸ transforms to ₈₃Bi²¹², the number of emitted α and β particles
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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