A black body does not __________ radiation. (A) Absorb or emit (B) Refract (C) Reflect (D) Both (B) & (C)

A black body does not __________ radiation.
(A) Absorb or emit
(B) Refract
(C) Reflect
(D) Both (B) & (C)
by

1 Answer

Answer :

(D) Both (B) & (C)
by

Related questions

Purpose of an optical filter is to – (1) reflect lights of different colours (2) dispense light into component colours (3) refract light of different colours (4) transmit or absorb light of different colours

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Last Answer :  transmit or absorb light of different colours

A hollow sphere and a solid sphere of the same material and equal radii are heated to the same temperature. In this case, (A) The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant (B) Both the spheres will emit equal amount of radiation per unit time in the beginning (C) Both will absorb equal amount of radiation from the surrounding in the beginning (D) Both (B) & (C)

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Description : Do stars emit of reflect light?

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Description : Sodium vapour lamps glow with yellow colour. This is due to (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the ... (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

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. A perfect black body is a perfect __________ of radiation. (A) Absorber (B) Emitter (C) Both (A) & (B) (D) Neither (A) nor (B)

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A thin, flat & square plate measuring 2 m × 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2. The plate temperature will remain constant at 30°C, if the convective heat transfer co-efficient is __________ W/m2 °C. (A) 50 (B) 100 (C) 150 (D) 200

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