WBJEE 2017 Physics Solved Paper
© examsiri.com
Question : 22 of 40
Marks:
+1,
-0
The de Broglie wavelength of an electron is 0.4 × 10 – 10 m when its kinetic energy is 1.0 keV. Its wavelength will be 1.0 × 10 – 10 m, when its kinetic energy is
Go to Question: