Electrons Emerge from an Electron Gun with a Speed of 2.0

question 69

Multiple Choice

Electrons emerge from an electron gun with a speed of 2.0 × 10⁶ m/s and then pass through a double-slit apparatus.Interference fringes with spacing of 2.7 mm are detected on a screen far from the double slit.What would the fringe spacing be if the electrons were replaced by neutrons with the same speed? (h = 6.626 × 10^-34 J ∙ s,m_electron = 9.11 × 10^-31 kg,m_neutron = 1.675 × 10^-27 kg)

• A)1.5 μm
• B)4.9 m
• C)0.93 nm
• D)1.2 km

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Definitions:

Duopolist

One of two firms in a market where only two firms offer a particular product or service, leading to a specific form of competition.

Cartel Agreement

An arrangement among competing firms to control prices or exclude entry of a new competitor in the market, often through setting production levels or dividing markets.

Nash Equilibrium

A concept in game theory where no player can benefit by unilaterally changing their strategy if the strategies of the others remain unchanged.

Dominant Strategy

A strategy in game theory that provides the best outcome for a player, regardless of the strategies chosen by other players.