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Home » Light with an energy flux of falls on a non-reflecting surface at normal incidence. If the surface has an area of , the total momentum delivered during 30 minutes isa) b) c) d)
Light with an energy flux of 20 \mathrm{~W} / \mathrm{cm^{2}} falls on a non-reflecting surface at normal incidence. If the surface has an area of 30 \mathrm{~cm^{2}}, the total momentum delivered during 30 minutes is
a) 36 \times 10^{-5} \mathrm{~kg} \mathrm{~m} / \mathrm{s}
b) 36 \times 10^{-4} \mathrm{~kg} \mathrm{~m} / \mathrm{s}
c) 108 \times 10^{4} \mathrm{~kg} \mathrm{~m} / \mathrm{s}
d) 1.08 \times 10^{7} \mathrm{~kg} \mathrm{~m} / \mathrm{s}
CBSE | Class 12 | Electromagnetic Waves | NCERT Exemplar | Physics
Light with an energy flux of 20 \mathrm{~W} / \mathrm{cm^{2}} falls on a non-reflecting surface at normal incidence. If the surface has an area of 30 \mathrm{~cm^{2}}, the total momentum delivered during 30 minutes is
a) 36 \times 10^{-5} \mathrm{~kg} \mathrm{~m} / \mathrm{s}
b) 36 \times 10^{-4} \mathrm{~kg} \mathrm{~m} / \mathrm{s}
c) 108 \times 10^{4} \mathrm{~kg} \mathrm{~m} / \mathrm{s}
d) 1.08 \times 10^{7} \mathrm{~kg} \mathrm{~m} / \mathrm{s}

b) 36 \times 10^{-4} \mathrm{~kg} \mathrm{~m} / \mathrm{s}

i

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