Two Slits Are Illuminated with Red Light (λ = 650

question 14

Multiple Choice

Two slits are illuminated with red light (λ = 650 nm) . The slits are 0.25 mm apart and the distance to the screen is 1.25 m. What fraction of the maximum intensity on the screen is the intensity measured at a distance 3.0 mm from the central maximum?

• A) 0.94
• B) 0.92
• C) 0.96
• D) 0.98
• E) 0.99

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Definitions:

Charles's Law

A principle in physics that states the volume of a gas increases with increasing temperature, provided the pressure is constant.

Inspiratory Reserve Volume

The additional amount of air that can be inhaled after a normal inhalation, increasing lung volume.

Expiratory Reserve Volume

The additional amount of air that can be expelled from the lungs after a normal exhalation.