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Electromagnetic Waves question

2019 · 10 Apr · Shift 2 · Q49
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  5. /2019 · 10 Apr · Shift 2 · Q49

Electromagnetic Waves question

2019 · 10 Apr · Shift 2 · Q49

JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1
Light is incident normally on a completely absorbing surface with an energy flux of 25 W cm–2. If the surface has an area of 25 cm2, the momentum transferred to the surface in 40 min time duration will be :
  1. A
    6.3 × 10–4 Ns
  2. B
    5.0 × 10–3 Ns
  3. C
    1.4 × 10–6 Ns
  4. D
    3.5 × 10–6 Ns
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