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Total Internal Reflection

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Questions and Answers

What is the condition for total internal reflection to occur?

The waves must be incident at a sufficiently oblique angle and the second medium must have a higher wave speed (correct)

The second medium must have a lower wave speed

The waves must be incident at a right angle

The first medium must have a higher refractive index

What types of waves can undergo total internal reflection?

Only electromagnetic waves

Electromagnetic waves, sound and water waves (correct)

Only light and microwaves

Only sound and water waves

What happens to waves at the interface during total internal reflection?

They are partially reflected and partially refracted

They are completely reflected back into the first medium (correct)

They are absorbed by the first medium

They are refracted into the second medium

In a medium whose properties are independent of direction, how is the reflection described when the waves are capable of forming a narrow beam?

In terms of rays Signup and view all the answers

What is an example of an environment where total internal reflection can be observed?

A fish tank viewed obliquely from below Signup and view all the answers

What is the relationship between wave speed and refractive index in the context of total internal reflection?

Higher wave speed corresponds to lower refractive index Signup and view all the answers

In total internal reflection, where do the waves return after reaching the interface?

They are completely reflected back into the first medium Signup and view all the answers

What is the effect of total internal reflection on the brightness of the reflected scene?

The brightness remains unchanged Signup and view all the answers

What determines the description of reflection in terms of 'rays' rather than 'waves'?

The capability of waves to form a narrow beam Signup and view all the answers

Under what condition does total internal reflection occur?

When the waves are incident at a sufficiently oblique angle on the interface Signup and view all the answers