IsomerismHard
Question
A parallel beam of fast moving electrons is incident normally on a narrow slit. A fluorescent screen is placed at a large distance from the slit. If the speed of the electrons is increased, which of the following statements is correct ?
Options
A.The angular width of central maximum will be unaffacted.
B.Diffraction pattern is not observed on the screen in the case of electrons.
C.The angular width of the central maximum of the diffraction pattern will increase.
D.The angular width of the central maximum will decrease.
Solution
As speed of electrons is increased so wavelength of electrons will decreases. Therefore the angular width (∝ λ) of the central maximum of diffrection pattern will decrease.
Create a free account to view solution
View Solution FreeMore Isomerism Questions
The number of isomers of dibromoderivative of an alkene (molar mass 186 g mol-1) is...The total number of isomeric tolyl groups are −...Which of the following compounds does not have geometrical isomers -...Which of the following compounds possesses a chiral centre -...Which of the following will have meso-isomer also?...