Which of the following types of objects transmits light without scattering it? *
opaque
transparent
translucent

The transparent objects transmit the light without scattering in it.

Explanation:

Translucent objects: Translucent object allows some light to pass through them. It does not allow light directly to pass through it. It is scattered when the light passes through it. For example, frosted glass.

Opaque objects: Opaque object does not allow light to pass through it. For example, plastic.

Transparent objects: Transparent object allows light to pass through it. It allows light to pass through without scattering. For example, glass.

Therefore, the correct answer is transparent objects.

connect the batteries in series and hope

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.