Cedric gathered information about space objects from a reliable website. The information is shown in the table. Help Cedrick identify space object A. Space Object A Space Object B Space Object C
Composition rocks and some metals mostly frozen nitrogen mostly hydrogen and helium gas, no solids
Orbital period 3–6 years 247.68 years 226 million years
Space object A is
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power out to power in less than 100%

momentum of soft ball three times less than baskey ball

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.