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krek1111 [17]
3 years ago
14

An opaque object is placed in front of a spotlight. Which does not occur?

Physics
2 answers:
Karo-lina-s [1.5K]3 years ago
8 0

Answer:

The correct answer is ) B  Illumination does not occur when an opaque object is placed in front of a spotlight.                                

Explanation:

   

The following things could happen when a light wave with a single frequency strikes an object.

  • Absorption can take place. When absorption of light happens, light is converted to heat.
  • Reflection may take place. When this happens the light bounces off the surface of the object and is thus transmitted by the object.
  • It is more common to have visible light of many frequencies or even all frequencies fall towards the surface of objects. When this happens, objects have a propensity to partially absorb, reflect or transmit light certain frequencies. That is, one object might reflect blue light while absorbing all other frequencies of light visible to the naked eyes.

Cheers!

mars1129 [50]3 years ago
7 0

Answer: D. Transmission

Explanation:

A body is considered opaque to radiation (generally thermal radiation) when its thermal transmittance (the amount of energy that passes through the body per unit of time) is null or zero.

In this sense, when an opaque body is placed in front of a light source, it is illuminated, there will be  reflection and absorption of light, but not transmission.

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