Janet wants to find the spring constant of a given spring, so she hangs the spring vertically and attaches a 0.61 kg mass to the spring's other end. if the spring stretches 4.0 cm from its equilibrium position, what is the spring constant?

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).