Higher or Lower: Refractive Index (ISC 12)

Exercise and reference answers

Questions

1. A

   Refractive index of diamond (2.42)

   B

   Refractive index of water (1.33)

   Higher value

   Refractive index of diamond (2.42)

2. A

   Speed of light in glass

   B

   Speed of light in vacuum

   Higher value

   Speed of light in vacuum

3. A

   Refractive index of glass (1.5)

   B

   Refractive index of air (1.0)

   Higher value

   Refractive index of glass (1.5)

4. A

   Wavelength of red light

   B

   Wavelength of violet light

   Higher value

   Wavelength of red light

5. A

   Focal length of a thick lens

   B

   Focal length of a thin lens (more curved)

   Higher value

   Focal length of a thick lens

Instructions

Tap the side with the higher value.