NEW
Font size
WorksheetsThin Lens & mirror
Total questions: 22
Worksheet time: 19mins
Which diagram shows the correct reflection of light from a concave mirror?
[F is the principal focus]
Which diagram shows a ray hitting a semicircular glass block at the critical angle, θ?
A lens has a focal length f.
What are the required conditions for the lens to be used as a magnifying lens?
Diagram below shows an object placed at O, in front of a concave mirror.
F is the focal point of the mirror.
What are the characteristics of the image formed?
Virtual and smaller than the object
Real and smaller than the object
Virtual and bigger than the object
Real and bigger than the object
Diagram below shows a boy standing in front of a plane mirror.
The boy moves 1 m backwards.
Calculate the distance between the boy and his image.
3m
4m
6m
8m
Diagram below shows a ray of light passing into a glass block.
The refractive index of the glass is 1.54.
What is the angle of incidence?
19.7°
33.7°
54.7°
58.0°
Diagram below shows the path of light from P to O.
The critical angle of water is 48°. If θ° = 48°, which is the correct path of light after passing through point O?
OR
OS
OT
OU
Which of the following ray diagrams is correct for a magnifying glass?
Diagram below shows the positions of a man, a flower pot and a plane mirror.
What is the distance, in m, between the flower pot and the image of the man?
1
4
6
7
The critical angle of a type of coloured liquid is 48°.
Which diagram shows the total internal reflection?
Which ray diagram is correct for a convex lens?
Diagram below shows the appearance of the word PHYSICS as seen through a magnifying lens.
Which light phenomenon explains this situation?
Reflection
Refraction
Diffraction
Total internal reflection
Diagram below shows an object placed 20 cm in front of a concave mirror of focal length, f,10 cm.
What are the characteristics of the image formed?
Real, same size, inverted
Real, diminished, inverted
Virtual, same size, upright
Virtual, diminished, upright
Diagram shows a ray of light directed to a glass block.
Which statement is correct?
The light refracts towards normal as it enters the glass block
The incident angle is equal to the refracted angle
The light travels faster as it enters the glass block
The brightness of light increases as it travels in the glass block
Diagram shows an object placed in front of a convex lens.
What are the characteristics of the image formed?
Real, inverted, diminished
Real, inverted, same size
Virtual, upright, enlarged
Real, inverted, enlarged
Which ray diagram for a concave mirror is not drawn correctly?
[C = centre of curvature of mirror, F = focal point of mirror]
Diagram 18 shows the image, I, formed by a concave lens.
Which point, A, B, C or D is the focal point of the lens?
A
B
C
D
Diagram 19 shows a telescope made by a student using two cardboard tubes and two convex lenses of focal lengths 5 cm and 50 cm. The two tubes are adjusted until a sharp image of a distant object is observed.
Which arrangement is the most suitable for a telescope?
The diagram shows an object placed in front of a concave mirror.
The distance of the object is less than the focal length, f, of the mirror.
What are the characteristics of the image formed?
Real, upright, bigger than object
Real, inverted, smaller than object
Virtual, upright, bigger than object
Virtual, inverted, smaller than object
A periscope made of two prisms 45o – 90o – 45o.
Which of the following diagrams represents the periscope structure correctly?
Diagram 20 shows a light ray, P is directed to the centre, O of semicircular glass block. Refractive index of the glass is 1.57.
At which direction A, B, C or D does the light propagate after point O?
A
B
C
D
Diagram 22 shows Azli is standing in front of a plane mirror at a distance of 5 m.
What is the distance that Azli has to walk so that the distance between Azli and his image is 3 m.
1.0 m
1.5 m
2.0 m
3.5 m
