For given energy, E=3.03 × 10-19 joules corresponding wavelength is (h=6.626 × 10-34 J sec , c=3 × 108 m / sec )

Question

For given energy, E=3.03 × 10-19 joules corresponding wavelength is (h=6.626 × 10-34 J sec , c=3 × 108 m / sec ) (A) 65.6 nm (B) 6.56 nm (C) 3.4 nm (D) 656 nm

Tardigrade Admin · Accepted Answer

E=(h c/λ)⇒ λ =(6 ⋅ 626 × 10-34 × 3 × 108/3 ⋅ 03 × 10-19) =6.56 × 10-7 m =656 nm

Q. For given energy, $E = 3.03 \times 1 0^{- 19}$ joules corresponding wavelength is $(h = 6.626 \times 1 0^{- 34} J sec, c = 3 \times 1 0^{8} m / sec)$

$65.6 nm$

$6.56 nm$

$3.4 nm$

$656 nm$

$E = \frac{h c}{λ} \Rightarrow λ$

$= \frac{6 \cdot 626 \times 1 0 ^{- 34} \times 3 \times 1 0 ^{8}}{3 \cdot 03 \times 1 0 ^{- 19}}$

$= 6.56 \times 1 0^{- 7} m = 656 nm$

Q. For given energy, E=3.03×10−19 joules corresponding wavelength is (h=6.626×10−34Jsec,c=3×108m/sec)

65.6nm

6.56nm

3.4nm

656nm