3.2.2 Refraction of light

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Question 34

An IGCSE physics class is carrying out a refraction experiment using a rectangular glass block and optical pins.

Describe how to draw the experimental setup on a page, specifying:

The length and label of the line representing one side of the glass block of length 12 cm labeled $CD\mathbf{CD}$ .
The position of the normal relative to $CD\mathbf{CD}$ .
The angle and length of the line representing the incident ray $GH\mathbf{GH}$ , which has an angle of incidence of $40^\circ\,$ and a length of at least 8 cm.

[3]

State where the two optical pins, $P_1\,$ and $P_2$ , should be placed along the line $GH\mathbf{GH}$ to trace the ray as accurately as possible.

[1]

Even when the experiment is carried out carefully, the results may differ slightly from the theoretical values predicted by Snell's law. Suggest a practical reason for this difference.

[1]

An IGCSE physics class is carrying out a refraction experiment using a rectangular glass block and optical pins.

Describe how to draw the experimental setup on a page, specifying:

The length and label of the line representing one side of the glass block of length 12 cm labeled $CD\mathbf{CD}$ .
The position of the normal relative to $CD\mathbf{CD}$ .
The angle and length of the line representing the incident ray $GH\mathbf{GH}$ , which has an angle of incidence of $40^\circ\,$ and a length of at least 8 cm.

State where the two optical pins, $P_1\,$ and $P_2$ , should be placed along the line $GH\mathbf{GH}$ to trace the ray as accurately as possible.

[1]

Even when the experiment is carried out carefully, the results may differ slightly from the theoretical values predicted by Snell's law. Suggest a practical reason for this difference.

[1]

3.2.2 Refraction of light

Question 34

Markscheme

3.2.2 Refraction of light

Question 34

Markscheme

3.2.2 Refraction of light

Question 34

3.2.2 Refraction of light Questions

3.2.2 Refraction of light

Question 34

3.2.2 Refraction of light Questions