The energy of a photon is 3× 10-12 texterg text. What is its wavelength in nm? (h=6.62× 10-27erg -s;c=3× 1010cm/s)

Question

The energy of a photon is 3× 10-12 texterg text. What is its wavelength in nm? (h=6.62× 10-27erg -s;c=3× 1010cm/s)  (A) 662 (B) 1324 (C) 66.2 (D) 6.62

Tardigrade Admin · Accepted Answer

E=3× 10-12 texterg λ =? h=6.62× 10-27erg-s c=3× 1010cm s-1 E=(hc/λ ) 3× 10-2=(6.62× 10-27× 3× 1010/λ ) λ =(6.62× 10-27× 3× 1010/3× 10-12) =6.62× 10-5 cm =662× 10-7 cm =662× 10-9m=662 nm

Q. The energy of a photon is 3×10−12erg. What is its wavelength in nm? (h=6.62×10−27erg−s;c=3×1010cm/s)

662

1324

66.2

6.62

E=3×10−12erg λ=? h=6.62×10−27erg−s c=3×1010cms−1 E=λhc​ 3×10−2=λ6.62×10−27×3×1010​ λ=3×10−126.62×10−27×3×1010​ =6.62×10−5cm =662×10−7cm =662×10−9m=662nm

Q. The energy of a photon is $3 \times 10^{- 12} erg .$ What is its wavelength in nm? $(h = 6.62 \times 10^{- 27} er g - s; c = 3 \times 10^{10} c m / s)$