KCET 2023 Physics Solved Paper

© examsiri.com

Question : 27 of 60

Marks: +1, -0

The energy gap of an LED is 2.4‌eV. When the LED is switched ' ON ', the momentum of the emitted photons is

1.28×10−11‌kg⋅m⋅ s−1
0.64×10−27‌kg⋅m−1
1.28×10−27‌kg⋅m⋅ s−1
2.56×10−27‌kg⋅m⋅ s−1

Go to Question:

Prev Question

Next Question