Polarization and Light Behavior

The video tutorial covers the concept of polarization in electromagnetic waves, focusing on how electric and magnetic fields oscillate perpendicularly. It explains the difference between polarized and unpolarized waves, and how polarizers can transform unpolarized light into polarized light. The tutorial introduces Malus's Law, which quantifies the effect of polarizers on light intensity, and provides sample calculations. It concludes with a discussion on how polarization supports Maxwell's transverse wave model of light, while refuting Huygens' and Newton's models.

What is the primary difference between transverse and longitudinal waves in terms of polarization?

• Transverse waves can be polarized, while longitudinal waves cannot.

• Neither transverse nor longitudinal waves can be polarized.

• Longitudinal waves can be polarized, while transverse waves cannot.

• Both transverse and longitudinal waves can be polarized.

How does a polarizer transform unpolarized light?

• By changing the color of light.

• By increasing the intensity of light.

• By absorbing light with unwanted axes of polarization.

• By reflecting unwanted light.

According to Malus's Law, what happens to the intensity of unpolarized light after passing through a polarizer?

• It is reduced by 50%.

• It is reduced by 75%.

• It doubles.

• It remains the same.

What is the relationship between the electric field vectors and light intensity in Malus's Law?

• Intensity is inversely proportional to the square of the electric field vector.

• Intensity is directly proportional to the electric field vector.

• Intensity is inversely proportional to the electric field vector.

• Intensity is directly proportional to the square of the electric field vector.

In a scenario where light passes through two polarizers, what is the final intensity if the second polarizer is at 60 degrees?

• 25% of the original intensity

• 50% of the original intensity

• 12.5% of the original intensity

• 75% of the original intensity

What happens to the light intensity if the middle polarizer is removed in a three-polarizer setup?

• The intensity is halved.

• No light passes through.

• The intensity is doubled.

• The intensity remains unchanged.

Which model of light does polarization support?

• Huygens' longitudinal wave model

• Newton's corpuscular model

• Maxwell's transverse wave model

• Einstein's photoelectric model

Why couldn't Huygens' wave model explain polarization?

• It described light as a static field.

• It described light as a mixture of waves and particles.

• It described light as longitudinal waves.

• It described light as a stream of particles.

What is the effect of a polarizer on light with a polarizing axis perpendicular to its transmission axis?

• Light intensity is doubled.

• No light passes through.

• Light intensity is unchanged.

• All light passes through.

How does Maxwell's model describe light?

• As a static electric field.

• As a product of oscillating electric and magnetic fields.

• As a stream of particles.

• As longitudinal waves.