Two Narrow Slits, Their Centers Separated by 15 Cm, Are

question 72

Multiple Choice

Two narrow slits, their centers separated by 15 cm, are illuminated by monochromatic radiation and produce the pattern in the figure on a distant screen. The wavelength of the radiation is

• A) 0.52 cm.
• B) 1.0 cm.
• C) 1.6 cm.
• D) 2.1 cm.
• E) 3.0 cm.

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Definitions:

Regressive Taxation

The tax as a percentage of income decreases as income increases.

Progressive Taxation

Progressive taxation is a tax system where the tax rate increases as the taxable amount or income of the taxpayer increases, making it proportionally more significant for higher-income earners.

Proportional Taxation

A tax system where the tax rate is fixed and does not change with the income level of the taxpayer, implying everyone pays the same percentage of their income in taxes.

Regressive Taxation

A tax system where the tax rate decreases as the taxable amount increases, meaning lower-income individuals pay a higher percentage of their income compared to higher-income earners.