Light of Wavelength $\lambda$ Is Normally Incident on Some Plane Optical Device

question 16

Multiple Choice

Light of wavelength $\lambda$ is normally incident on some plane optical device.The intensity pattern shown is observed on a distant screen ( $\theta$ is the angle measured to the normal of the device) .The device could be:

• A)a single slit of width W
• B)a single slit of width 2W
• C)two narrow slits with separation W
• D)two narrow slits with separation 2W
• E)a diffraction grating with slit separation W

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Definitions:

Penis Envy

represents a controversial concept in Freudian psychoanalysis, suggesting that female psychosexual development involves envy of the male penis as a perceived source of power.

Phallic Stage

A stage in Freudian psychosexual development, occurring roughly between the ages of three and six, during which a child's focus of pleasure is on the genital area.

Latency Stage

A phase in Freudian psychosexual development occurring between ages 6 and puberty, characterized by a decrease in sexual interest and focus on social and intellectual growth.

Personality Development

The growth and development of the aspects of a person that involve their character and personality traits over time.