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11. Dual nature of radiation and matter — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics11. Dual nature of radiation and matter1 Mark
MCQ
Light comprising three wavelength $310$, $455$, $620$  $nm$ is incident on a surface separating two media at an angle of $45^o $ and given refractive index for $455$  $nm$ light is $\sqrt 2 $ . If a metal plate of work function $1.2$  $eV$ is placed in this medium then maximum kinetic energy of the electron emitted from metallic plate is.......$eV$
  • ✓
    $0.8$
  • B
    $2.8$
  • C
    $1.8$
  • D
    $1.5$
✓

Answer

Correct option: A.
$0.8$
a

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