What is the momentum of a photon having frequency 1.5× 1013 Hz ?

Question

What is the momentum of a photon having frequency 1.5× 1013 Hz ? (A) 3.3× 10- 29 kgms- 1 (B) 3.3× 10- 34 kgms- 1 (C) 6.6× 10- 34 kgms- 1 (D) 6.6× 10- 30 kgms- 1

Tardigrade Admin · Accepted Answer

p=(h ν/c)=(6.63 × 10- 34 × 1.5 × 1013/3 × 108)=3.3× 10- 29 textkg m s- 1

Q. What is the momentum of a photon having frequency $1.5 \times 1 0^{13} Hz$ ?

$3.3 \times 1 0^{- 29} k g m s^{- 1}$

$3.3 \times 1 0^{- 34} k g m s^{- 1}$

$6.6 \times 1 0^{- 34} k g m s^{- 1}$

$6.6 \times 1 0^{- 30} k g m s^{- 1}$

$p = \frac{h ν}{c} = \frac{6.63 \times 1 0 ^{- 34} \times 1.5 \times 1 0 ^{13}}{3 \times 1 0 ^{8}} = 3.3 \times 1 0^{- 29} kg m s^{- 1}$

Q. What is the momentum of a photon having frequency 1.5×1013Hz ?

3.3×10−29kgms−1

3.3×10−34kgms−1

6.6×10−34kgms−1

6.6×10−30kgms−1