The energy of an x-ray photon of wavelength 1 A is 6-6 - 10-34 J s A- 34-6 KeVB- 6-1 KeVC- 12-3 KeVD- 1-2 KeV

The correct option is C 12.3 KeVE=hc/λ=6.6× 10^ 34× 3 × 10^8/10^ 10=12.3KeV ...

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Standard XII

Physics

Threshold Frequency

The energy of...

Question

The energy of an x-ray photon of wavelength $1 \circ A$ is $(6.6 \times 10^{- 34} J s)$

34.6 KeV

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6.1 KeV

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12.3 KeV

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1.2 Kev

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Solution

The correct option is C 12.3 KeV
$E = \frac{h c}{λ} = \frac{6.6 \times 10^{- 34} \times 3 \times 10^{8}}{10^{- 10}} = 12.3 K e V$

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The energy of an x-ray photon of wavelength 1∘A is (6.6×10−34Js)

The correct option is C 12.3 KeVE=hcλ=6.6×10−34×3×10810−10=12.3KeV

The energy of an x-ray photon of wavelength $1 \circ A$ is $(6.6 \times 10^{- 34} J s)$

The correct option is C 12.3 KeV
$E = \frac{h c}{λ} = \frac{6.6 \times 10^{- 34} \times 3 \times 10^{8}}{10^{- 10}} = 12.3 K e V$