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In which scenario would total internal reflection NOT occur?

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Question: In which scenario would total internal reflection NOT occur?

Options:

  1. Light traveling from glass to air at a steep angle.
  2. Light traveling from water to air at a shallow angle.
  3. Light traveling from diamond to air at a high angle.
  4. Light traveling from air to water at any angle.

Correct Answer: Light traveling from air to water at any angle.

Solution: 

Total internal reflection cannot occur when light travels from a rarer medium (air) to a denser medium (water) at any angle, as it will always refract.

In which scenario would total internal reflection NOT occur?

Practice Questions

Q1
In which scenario would total internal reflection NOT occur?
  1. Light traveling from glass to air at a steep angle.
  2. Light traveling from water to air at a shallow angle.
  3. Light traveling from diamond to air at a high angle.
  4. Light traveling from air to water at any angle.

Questions & Step-by-Step Solutions

In which scenario would total internal reflection NOT occur?
Correct Answer: When light travels from air to water.
  • Step 1: Understand what total internal reflection is. It happens when light tries to move from a denser medium to a rarer medium and hits the boundary at a certain angle.
  • Step 2: Identify the types of mediums. A rarer medium is one that is less dense (like air), and a denser medium is one that is more dense (like water).
  • Step 3: Recognize the direction of light. Total internal reflection occurs when light goes from a denser medium (like water) to a rarer medium (like air).
  • Step 4: Determine the scenario in the question. The question asks about light traveling from a rarer medium (air) to a denser medium (water).
  • Step 5: Conclude that in this scenario, total internal reflection cannot happen because the light will always bend (refract) into the water instead of reflecting back.
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