An Electron Is Accelerated from Rest Through a Potential Difference $880 \mathrm {~nm}$

question 150

Short Answer

An electron is accelerated from rest through a potential difference. After acceleration the electron has a wavelength of $880 \mathrm {~nm}$ . What is the potential difference responsible for the acceleration of the electron? \left( h = 6.626 \times 10 <sup>- 34</sup> \mathrm {~J} \cdot \mathrm { s } , m _ { \text {electron } } = 9.11 \times 10<sup> - 31</sup> \mathrm {~kg} , e = 1.6*10<sup>- 19</sup> \mathrm { C } \right)
A) $2.5 \times 10 ^ { - 6 } \mathrm {~V}$
B) $1.7 \times 10 ^ { - 6 } \mathrm {~V}$
C) $2.2 \times 10 ^ { - 6 } \mathrm {~V}$
D) $1.9 \times 10 ^ { - 6 } \mathrm {~V}$

• A) \(2.5 \times 10 ^ { - 6 } \mathrm {~V}\)
• B) \(1.7 \times 10 ^ { - 6 } \mathrm {~V}\)
• C) \(2.2 \times 10 ^ { - 6 } \mathrm {~V}\)
• D) \(1.9 \times 10 ^ { - 6 } \mathrm {~V}\)

Understand accounting for merchandise transactions using the gross and net methods.

Calculate gross profit, net income, and understand their implications on financial performance.

Apply knowledge of periodic and perpetual inventory systems in accounting entries.

Understand and calculate discounts, including sales discounts and purchase discounts.

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Concentration Ratio

A measure indicating the market share of the largest firms in an industry, used to determine the market's level of competition.

Technological Opportunities

The potential for firms to develop innovations or improve processes due to advances in technology.

R&D Expenditures

Funds allocated by a company towards research and development efforts aimed at innovation and improving products or processes.