Which of these is an example of light energy being transformed into chemical energy?A glow stick lights up when broken. Water heated by the sun evaporates. A plant makes sugar in the sunlight. A battery causes a buzzer to vibrate. Which kind of energy change occurs when a candle is burning?Chemical to lightLight to electricalSolar to heatChemical to electricalWhich type of energy transformation occurs when a flashlight shines? water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occur?Electrical Light MechanicalChemical Mechanical ElectricalMechanical ChemicalLightMechanical ElectricalLight

1. A plant makes sugar

2. Chemical to light

3. Chemical thermal light

4. can you redo the answer choices on the last one

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

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.