A parallel beam of fast moving electrons is incident normally on a narrow slit. A flueroscent screen is placed at a large distance from the slit. If the speed of the electron is increased, which of the following statements is correct ?

A parallel beam of fast moving electrons is incident normally on a nar

1.	A parallel beam of fast moving electrons is incident normally on a narrow slit. A flueroscent screen is placed at a large distance from the slit. If the speed of the electron is increased, which of the following statements is correct ?
Answer» DIFFRACTION pattern is not observed on the screen in the CASE of electrons. The ANGULAR width of the central maximum of the diffraction pattern will increase. the angular width of central maximum will decrease the angular width of central maximum will be unaffected Answer :C

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A parallel beam of fast moving electrons is incident normally on a narrow slit. A flueroscent screen is placed at a large distance from the slit. If the speed of the electron is increased, which of the following statements is correct ?

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