Question
Physics Question on speed and velocity
Electrons are accelerated by 344 volts and reflected from the crystal. The first reflection maximum occurs when glancing angle is 30°. What will be the value of interplanar spacing of the crystal? [Given h=6.62×10-34 Js, me = 9.1x10-31 kg]
A
0.06×10-10 m
B
0.66×10-10 m
C
1.66×10-10 m
D
2.66×10-10 m
Answer
0.66×10-10 m
Explanation
Solution
The correct option is (B)