Photoelectrons Are Ejected When Monochromatic Light Shines on a Freshly-Prepared

question 13

Multiple Choice

Photoelectrons are ejected when monochromatic light shines on a freshly-prepared (oxide-free) sodium surface.In order to obtain the maximum increase in the number of electrons ejected per second, the experimenter needs to:

• A)increase the frequency of the light.
• B)increase the intensity of the light.
• C)increase the area illuminated by the light.
• D)increase the frequency and intensity of the light, and also the area illuminated.
• E)increase the intensity of the light and the area illuminated, but not the frequency.

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Definitions:

Conception

The moment when a sperm fertilizes an egg, leading to the beginning of pregnancy.

Sex Hormones

Chemical substances produced by the gonads (ovaries and testes) that regulate many aspects of sexuality and reproduction as well as secondary sexual characteristics.

Puberty

The developmental stage during which children mature sexually and physically into young adults.

Gender Typing

The way in which a child comes to understand their gender identity and, as a result, starts to embody the behaviors and norms of the gender they feel is their own.