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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
The mass of a photo electron is
  • A
    $9.1 \times {10^{ - 27}}\,kg$
  • B
    $9.1 \times {10^{ - 29}}\,kg$
  • ✓
    $9.1 \times {10^{ - 31}}\,kg$
  • D
    $9.1 \times {10^{ - 34}}\,kg$
✓

Answer

Correct option: C.
$9.1 \times {10^{ - 31}}\,kg$
c
(c)

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