Exam code: YPH11
The diagram shows refraction of a ray of light as it passes through three transparent substances, L, M and N. The speeds of light in the three substances are vL, vM and vN, respectively.
Which of the following shows the relationship between vL, vM and vN?
vL > vM > vN
vL > vN > vM
vN > vM > vL
vM > vN > vL
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The diagram shows refraction of a ray of light as it passes through three transparent substances, L, M and N. The speeds of light in the three substances are vL, vM and vN, respectively.
Which of the following could result in a ray of light undergoing total internal reflection?
light travelling from L to M
light travelling from L to N
light travelling from M to L
light travelling from N to M
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A light bulb with an efficiency of 12% is positioned 2.0 m above a light sensor.
The intensity of light at the light sensor is 0.14 W m−2.
Which of the following could be used to calculate the power of the light bulb?
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Which of the following cannot be experimentally demonstrated with sound waves?
polarisation
interference
diffraction
resonance
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An object is placed a distance from a lens of focal length . A real image is produced.
Which of the following gives the distance from the lens to the image?
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