Navigate

Which of the following is an example of ideal black body?

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.

AIEEE2002
admin:

Related Questions

  1. A charged particle experiences magnetic force in the presence of magnetic field.
  2. A solid sphere, a hollow sphere and a ring are released from top of an inclined
  3. Light from the constellation Virgo is observed to increase in wavelength by 0.4%
  4. If the velocity of an electron increases, then its de Broglie wavelength will
  5. A capacitor is used to store 24 watt hour of energy at 1200 volt.