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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.
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- A concave mirror ia placed over a beaker containing water of
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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
- For inelastic collision between two spherical rigid bodies
- A concave mirror ia placed over a beaker containing water of
- A motorcycle moving with a velocity 72 kmh⁻¹ on a flat road takes a turn
- A transistor is operated in common-emitter configuration at Vᵥ = 2 V such that a change
- In a Rutherford scattering experiment when a projectile of charge Z₁ and mass M₁
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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