Electrons Emerge from an Electron Gun with a Speed of 2.0

question 38

Multiple Choice

Electrons emerge from an electron gun with a speed of 2.0 × 10⁶ m/s and then pass through a pair of thin parallel slits.Interference fringes with a spacing of 2.7 mm are detected on a screen far from the double slit and fairly close to the center of the pattern.What would the fringe spacing be if the electrons were replaced by neutrons with the same speed? (m_el = 9.11 × 10^-31 kg,m_neutron = 1.67 × 10^-27 kg)

• A)1.5 µm
• B)4.9 µm
• C)0.93 nm
• D)1.1 µm
• E)1.5 nm

Analyze how absolute purchasing power parity applies to the calculation of equivalent commodity prices across different currencies.

Identify strategies to mitigate exchange rate risk for international firms.

Apply the international Fisher effect in calculating the net present value of foreign investment projects.

Understand the concept of unbiased forward rates and its significance in predicting future exchange rates.

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