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- 1. Multiple Choice
Which of these objects is not luminous?
The sun
A star in the sky
The moon
A candle
- 2. Multiple Choice
According to the Law of Reflection...
the angle of incidence is equal to the angle of reflection
the angle of incidence is greater then the angle of reflection
the angle of incidence is smaller than the angle of reflection
the angle of incidence is not equal to the angle of reflection
- 3. Multiple Choice
A ray of light is incident on a plane mirror and the angle of incidence is 25 degrees. What is the angle of reflection?
0 degrees
50 degrees
100 degrees
25 degrees
- 4. Multiple Choice
The bending of a ray of light as it travels from one medium to another is called
reflection
refraction
the total internal reflection
deflection
- 5. Multiple Choice
A ray of light is shone on a rectangular glass block as shown. Identify X, Y and Z.
X = Angle of reflection, Y = Angle of incidence, Z = Normal
X = Angle of Refraction, Y = Angle of incidence, Z = Emergent ray
X = Angle of incidence, Y = Emergent ray, Z = Angle of refraction
X = Angle of incidence, Y = Angle of refraction, Z = Emergent ray
- 6. Multiple Choice
When a ray of light travels from a vacuum to a denser medium such as glass, it is refracted away from the normal.
True
False
- 7. Multiple Choice
The primary colours are
red, white and blue
red, green and yellow
red, blue and yellow
red, green and blue
- 8. Multiple Choice
Which of the following colours has the shortest wavelength?
Orange
Yellow
Green
Red
- 9. Multiple Choice
Which of these parts of the eyes fits this description?
"The outer coating of the eye. It is the opaque protective layer, known as the ‘white of the eye' ".
Fovea
Sclera
Cornea
Retina
- 10. Multiple Choice
Which of these parts of the eyes fits this description?
"A small pit in the retina shaped to allow the light to fall straight onto the nerve cells so that we can see very detailed objects.
Fovea
Sclera
Cornea
Retina
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