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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 two ends of a rod of length L and a uniform cross-sectional area
- If vₑ is escape velocity and vₙ is orbital velocity of a satellite
- A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
- A light whose frequency is equal to 6.0 x 10¹⁴ Hz is incident on a metal
Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The two ends of a rod of length L and a uniform cross-sectional area
- If vₑ is escape velocity and vₙ is orbital velocity of a satellite
- A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
- A light whose frequency is equal to 6.0 x 10¹⁴ Hz is incident on a metal
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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