GCSE - Gcse Physics - Light - Other Applications Of Light Solution

Q.1.

What is the critical angle of a medium if its refractive index is 1.5?

Q.2.

What is the definition for critical angle in optics?

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The angle below which total internal reflection occurs
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The critical angle is the angle of incidence above which total internal reflection occurs
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The angle between the normal and the angle of incidence
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The angle between the normal and the angle of refraction

Q.3.

What is a laser?

Q.4.

Optical fibres can be used to transmit which of the following?

Q.5.

Lasers can be used for a variety of applications. Which of the following are lasers useful for?

Q.6.

Which of the following are examples of optical fibres?

Q.7.

What is the normal range of sight for a human eye?

Q.8.

Calculate the refractive index of a medium which has a critical angle of 52 .

Q.9.

Which of the following is NOT an application of total internal reflection?

Q.10.

Which formula correctly states the relationship between refractive index and critical angle?