A Red Laser Pointer with a Wavelength of 635 Nm

question 10

Multiple Choice

A red laser pointer with a wavelength of 635 nm is shined on a double-slit producing an interference pattern on a screen that is 1.6 m behind the double-slit.The central maximum of the interference pattern has a width of 4.2 cm,and it is noted that the third bright spot is missing on both sides.What is the size of the individual slits that were used to make the double-slit?

• A)4.0 * 10^-6 m
• B)8.1 * 10^-6 m
• C)16 * 10^-6 m
• D)24 * 10^-6 m
• E)48 * 10^-6 m

Recognize the characteristics and formation processes of hot spots and oceanic plateaus.

Identify different types of islands (e.g., volcanic islands, atolls) and understand their formation mechanisms.

Understand the concepts of seafloor spreading and the age of oceanic crust, including the identification of the youngest and oldest seafloor regions.

Explain the formation and characteristics of different seas and their tectonic settings, including back-arc spreading and the role of subduction in sea formation.

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