Questão 1
Questão
The diagram shows a ray of light in air incident on a glass block.
Some of the light is refracted, and some of the light is reflected. Two angles p and q are marked on the diagram.
Which choice gives the angle of incidence and shows whether the ray undergoes total internal A reflection?
Responda
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A angle of incidence = P; total internal reflection = no
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B angle of incidence = P; total internal reflection = yes
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C angle of incidence = Q; total internal reflection = no
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D angle of incidence = Q; total internal reflection = yes
Questão 2
Questão
The diagram shows an object in front of a plane mirror.
At which labelled position is the image of the object formed?
Questão 3
Questão
Which diagram correctly shows a ray of light reflected by a plane mirror?
Questão 4
Questão
The diagram shows a ray of light incident on the edge of a piece of glass. The angle i is greater than the critical angle.
Which arrow shows the direction of the ray after it leaves the edge of the glass?
Questão 5
Questão
Which diagram shows how the light from a candle is reflected by a mirror, and shows the position of the image formed?
Questão 6
Questão
The diagram shows a ray of light inside a glass rod. The critical angle for the light in the glass is 42°.
Which choice shows what happens to the light when it reaches the surface of the glass rod?
Responda
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A Any light reflected = no; Any light refracted = no
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B Any light reflected = no; Any light refracted = yes
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C Any light reflected = yes; Any light refracted = no
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D Any light reflected = yes; Any light refracted = yes
Questão 7
Questão
A plane mirror is fitted to a wall.
Which statement about the image formed by the mirror is correct?
Responda
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A The image is real.
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B The image is left to right (laterally inverted).
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C The image is smaller than the object.
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D The image is upside down.
Questão 8
Questão
A ray of light is reflected by two parallel plane mirrors X and Y.
Which statement is correct?
Responda
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A The angle of incidence at mirror X is 30°.
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B The angle of incidence at mirror Y is 60°.
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C The angle of reflection at mirror X is 120°.
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D The angle of reflection at mirror Y is 0°.
Questão 9
Questão
Which statement about a converging lens is not correct?
Responda
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A A ray parallel to the principal axis of the lens is refracted through the principal focus.
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B All rays of light refracted by the lens pass through the principal focus.
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C The distance between the centre of the lens and the principal focus is the focal length.
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D The principal focus of the lens is a point on the principal axis.
Questão 10
Questão
Rays of light enter and leave a box
What could be inside the box to make the rays behave as shown?
Questão 11
Questão
A boy wears a shirt with a letter F on the front. He stands in front of a plane mirror.
What does he see in the mirror?
Questão 12
Questão
Light waves pass from air into glass and are refracted.
What always remains constant when this happens?
Responda
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A direction
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B frequency
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C speed
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D wavelength
Questão 13
Questão
Which diagram shows how a ray of light could pass through a glass block in air?
Questão 14
Questão
The diagram shows a ray of light passing through a semicircular glass block into air.
Which choice gives the correct name for angle P and states how angle P compares with the critical angle?
Responda
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A Name of angle P = angle of incidence;
Angle P compared with the critical angle = larger than the critical angle
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B Name of angle P = angle of incidence;
Angle P compared with the critical angle = smaller than the critical angle
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C Name of angle P = angle of refraction;
Angle P compared with the critical angle = larger than the critical angle
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D Name of angle P = angle of refraction
Angle P compared with the critical angle = smaller than the critical angle
Questão 15
Questão
The image formed by a plane mirror is upright.
What are the other characteristics of the image?
Questão 16
Questão
A plane mirror is used to form an image of an object.
At which labelled point is the image formed?
Questão 17
Questão
The diagram shows a ray of light travelling from X. Angle P is less than the critical angle.
In which direction does the ray continue?
Questão 18
Questão
The diagram shows the image of a clock in a plane mirror.
What time is shown?
Responda
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A 02:25
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B 02:35
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C 09:25
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D 09:35