Converse of object

• suffer: Soe that blew rays suffer a greater refraction then red ones.

• need: Light rays from a distant object are almost parallel so do not need much refraction to focus onto the retina.

• have: However it is easy to separate with an eye glass, having a large double refraction.

Converse of subject

• affect: The research showed that reflectance and luminosity of fire escape signage is affected by light refraction in smoke conditions.

• cause: This is an illusion caused by the refraction of light within the resin.

• produce: Cirrus is a nearly unique source of these displays because they are produced by the refraction of light-rays passing through ice crystals.

Adjective modifier

• atmospheric: The blurring evident in the image is thought to result from atmospheric refraction.

• seismic: The methods are seismic refraction, gravity and electrical resistivity.

• double: However it is easy to separate with an eye glass, having a large double refraction.

• light: The research showed that reflectance and luminosity of fire escape signage is affected by light refraction in smoke conditions.

• conical: In 1833 Hamilton announced his discovery of conical refraction of light.

• differential: Differential refraction pushes the lower limb upwards to create the highly flattened shape.

Modifies a noun

• index: This results in a permanent change in the periodic refraction index of the optical fiber.

• effect: There is no major refraction effect at the model length scale.

• analysis: A shoaling and refraction analysis should then be undertaken to determine the specific climates for the selected beaches.

Noun used with modifier

• wave: The main benefit would be to provide more precise input to modeling of the contribution of wave refraction to inshore wave climate.

Preposition: of

• ray: With a water immersion lens however, refraction of the rays occurs on the glass - water boundaries.

• light: Glass or plastic filaments allow the internal refraction of light for viewing.

• wave: These are partly formed because of the refraction of the waves around the end of the spit.

• sunlight: This color results from the refraction of sunlight by the Earth's atmosphere.