MHT CET 2024 Physics question

The Kinetic energy of an electron is increased by 2 timed, then de-Broglie wavelength associated with it changes by a factor

Answer: (B)

Solution

"Increased by 2 times" means the kinetic energy increases by , so the new kinetic energy is . The de Broglie wavelength is , i.e. . Hence

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-093181