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0654 Light Quiz

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Quiz on light for IGCSE 0654 Coordinated Sciences ,
Jeffrey Piggott
Quiz by Jeffrey Piggott, updated more than 1 year ago
Jeffrey Piggott
Created by Jeffrey Piggott almost 6 years ago
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Resource summary

Question 1

Question
The diagram shows light travelling from air into glass. Four angles v, w, x and y are shown. Which formula is used to calculate the refractive index 'n' of the glass?
Image:
Q1 (binary/octet-stream)
Answer
  • A n = sin v / sin y
  • B n = sin v / sin x
  • C n = sin w / sin y
  • D n = sin w / sin x

Question 2

Question
The diagram shows a converging lens forming an image of an object. Which statement about the image is correct?
Image:
Q2 (binary/octet-stream)
Answer
  • A It is real and can be seen by an eye placed at X.
  • B It is real and can be seen by an eye placed at Y.
  • C It is virtual and can be seen by an eye placed at X.
  • D It is virtual and can be seen by an eye placed at Y.

Question 3

Question
The diagram shows light passing from air into glass. The glass has a refractive index of 1.5. What is the angle of refraction in the glass?
Image:
Q3 (binary/octet-stream)
Answer
  • A 19°
  • B 22°
  • C 35°
  • D 49°

Question 4

Question
The diagram shows an object in front of a plane mirror. The mirror forms an image of the object. At which labelled point is the image formed, and which type of image is formed?
Image:
Q4 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 5

Question
Light enters a glass block at an angle of incidence of 46°. The light refracts at an angle of refraction of 26°. What is the refractive index of the glass?
Answer
  • A 0.57
  • B 0.61
  • C 1.64
  • D 1.77

Question 6

Question
Which diagram correctly shows a ray of light reflected by a plane mirror?
Image:
Q6 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 7

Question
Which diagram shows how a converging lens is used as a magnifying glass?
Image:
Q7 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 8

Question
An object O is placed close to a thin converging lens. The diagram represents three rays from the top of O passing through the lens. Which type of image is produced by the lens when the object O is in this position?
Image:
Q8 (binary/octet-stream)
Answer
  • A real and diminished
  • B real and enlarged
  • C virtual and diminished
  • D virtual and enlarged

Question 9

Question
The diagram shows the electromagnetic spectrum, in order of increasing wavelength. Three types of radiation, P, Q and R, are missing from the spectrum diagram. Which types of electromagnetic radiation are represented by P, by Q and by R?
Image:
Q10 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 10

Question
Radiation from the Sun is dispersed by a prism. The prism does not absorb any of the radiation. Four identical thermometers are placed, one at each of the labelled positions. In which position does the thermometer show the greatest rise in temperature?
Image:
Q10a (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 11

Question
An object is placed in front of a thin converging lens. The diagram shows the paths of two rays from the top of the object. An image of the object is formed on a screen to the right of the lens. How does this image compare with the object?
Image:
Q11 (binary/octet-stream)
Answer
  • A It is larger and inverted.
  • B It is larger and the same way up.
  • C It is smaller and inverted.
  • D It is smaller and the same way up.

Question 12

Question
A scientist tries to direct a ray of light in a glass block so that no light escapes from the top of the block. However, some light does escape. The scientist changes angle X and stops the light escaping from the top. Which row in the table describes the change to angle X and the name of the effect produced?
Image:
Q12 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 13

Question
Which diagram shows how the light from a candle is reflected by a mirror, and shows the position of the image formed?
Image:
Q13 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 14

Question
A student draws a diagram representing three rays of light from point P passing through a converging lens. Each point labelled F is a principal focus of the lens. Which of the rays has the student drawn correctly?
Image:
Q14 (binary/octet-stream)
Answer
  • A ray X and ray Y
  • B ray X and ray Z
  • C ray Y only
  • D ray Z only

Question 15

Question
The diagram shows a ray of light inside a glass rod. The critical angle for the light in the glass is 42°. Which row shows what happens to the light when it reaches the surface of the glass rod?
Image:
Q15 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 16

Question
The diagram shows a ray of light travelling in a substance P. The ray reaches a boundary with a substance Q. Total internal reflection occurs at the boundary. Which row contains correct statements about angle X and about the optical density of substance Q?
Image:
Q16 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 17

Question
Which labelled distance is the focal length of the lens?
Image:
Q17 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 18

Question
A ray of light is reflected by two parallel plane mirrors X and Y. Which statement is correct?
Image:
Q18 (binary/octet-stream)
Answer
  • A The angle of incidence at mirror X is 30°.
  • B The angle of incidence at mirror Y is 60°.
  • C The angle of reflection at mirror X is 120°.
  • D The angle of reflection at mirror Y is 0°.

Question 19

Question
Scout P signals to scout Q on the other side of a valley by using a mirror to reflect the Sun’s rays. Which mirror position would allow the Sun’s rays to be reflected to scout Q?
Image:
Q19 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 20

Question
 Which statement about a converging lens is not correct?
Answer
  • A A ray parallel to the principal axis of the lens is refracted through the principal focus.
  • B All rays of light refracted by the lens pass through the principal focus.
  • C The distance between the centre of the lens and the principal focus is the focal length.
  • D The principal focus of the lens is a point on the principal axis.

Question 21

Question
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?
Image:
Q20 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 22

Question
Light waves pass from air into glass and are refracted. What always remains constant when this happens?
Answer
  • A direction
  • B frequency
  • C speed
  • D wavelength

Question 23

Question
An object is placed in front of a converging lens. The lens has a focal length f. The lens produces a real, enlarged image of the object. In which labelled position is the object placed?
Image:
Q23 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 24

Question
The diagram shows the image of a clock in a plane mirror. What time is shown?
Image:
Q24 (binary/octet-stream)
Answer
  • A 02:25
  • B 02:35
  • C 09:25
  • D 09:35

Question 25

Question
Water waves may be used to demonstrate refraction by making them pass into water of a different depth. Why does the water wave change direction as it passes into the shallow water?
Answer
  • A The frequency of the wave decreases.
  • B The frequency of the wave increases
  • C The speed of the wave decreases.
  • D The speed of the wave increases

Question 26

Question
A teacher demonstrates the dispersion of white light using a triangular glass prism. Which diagram shows how this dispersion happens?
Image:
Q26 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 27

Question
The diagram shows radiation from a lamp passing through a prism. Which type of radiation is found at P? he diagram shows radiation from a lamp passing through a prism.
Answer
  • A γ-rays
  • B infra-red
  • C ultraviolet
  • D X-rays

Question 28

Question
A thin converging lens is used to produce, on a screen, a focused image of a candle. Various focused images are produced on the screen by moving the lens and the screen backwards and forwards. Which statement is always correct?
Image:
Q28 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 29

Question
A converging lens in a projector is used to make an enlarged image of a small piece of film on a screen. At which labelled point could the piece of film be placed so that the lens produces this image?
Image:
Q29 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D

Question 30

Question
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?
Image:
Q30 (binary/octet-stream)
Answer
  • A
  • B
  • C
  • D
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