Please help with physics light/ refraction questions! THank you very much A ray
ID: 1425276 • Letter: P
Question
Please help with physics light/ refraction questions! THank you very much
A ray of single-wavelength light, initially travelling in air, strikes a water surface at an angle of incidence of 45 degrees. Which one of the following options is correct for the angle that the light ray makes with the norm al to the air/water interface once the light ray has entered the water? 32 degrees 45 degrees 70 degrees Consider a ray of single-wavelength light that strikes a rectangular glass block at an angle of incidence of 45 degree. The light exits the glass block through the side that is parallel to the side where the light entered. Which one of the following statements is correct concerning the ray of light exiting the glass block (i.e. the outgoing ray)? The outgoing ray is parallel to the incident ray, but is offset from the path of the incident ray. The outgoing ray is traveling in the same direction as the incident ray (no deviation or offset). The angle of the outgoing ray with the normal to the surface is less than 45 degree Now consider a beam of white light that enters a prism. Which one of the following statements is correct concerning the light exiting the prism (the outgoing light)? The outgoing light is separated into the colours of the rainbow, with the violet light bent the most. The outgoing light is a beam of white light. The outgoing light is separated into the colours of the rainbow, with the red light bent the most.Explanation / Answer
1. Using snell's law of refraction,
n1sin(1) = n2sin(2)
1sin(45) = (4/3)sin(2)
sin(2) = 3/4squareroot(2) = 32 degrees
2. The outgoing ray is parallel to incident ray but is offset from the path of the incident ray.
3. The outgoing light is separated into tthe colours of a rainbow, with the violet light bent the most.