Here are some things you can do with a laser optical tank:
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Observe refractionTurn on the laser, turn off the lights, and spray compressed air or chalk dust above the tank. Note the angle of incidence and refraction, which are different because light bends when it passes from air to water.
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Make the beam visibleAdd a scattering agent to the water to make the beam more visible.
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Observe total internal reflectionIncrease the angle of incidence by aiming the laser through the water from the side of the tank.
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Measure the critical angleUse a laser refraction tank with a built-in laser to measure the critical angle for total internal reflection.
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Observe light raysUse a laser refraction tank to observe light rays as they travel from air into water, water into air, and water into water.
You can also use a laser optical tank to perform refraction and reflection experiments with prisms and mirrors.
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