1. Light with an energy flux of 20 W/cm² falls on a non-reflecting surface at normal incidence. If the surface has an area of 30 cm², the total momentum delivered (for complete absorption) during 30 minutes is: (a) 36 x 10-5 kg m/s. (c) 108 x 104 kg m/s. (b) 36 x 104 kg m/s. (d) 1.08 x 107 kg m/s.
1. Light with an energy flux of 20 W/cm² falls on a non-reflecting surface at normal incidence. If the surface has an area of 30 cm², the total momentum delivered (for complete absorption) during 30 minutes is: (a) 36 x 10-5 kg m/s. (c) 108 x 104 kg m/s. (b) 36 x 104 kg m/s. (d) 1.08 x 107 kg m/s.
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![Q. 1. Light with an energy flux of 20 W/cm² falls on a
non-reflecting surface at normal incidence. If the
surface has an area of 30 cm², the total momentum
delivered (for complete absorption) during 30
minutes is:
(a) 36 x 10-5 kg m/s.
(c) 108 x 104 kg m/s.
(b) 36 x 104 kg m/s.
(d) 1.08 × 107 kg m/s.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F509e4954-cac2-4c87-bb88-8d46fa8e5328%2F8c325a2c-1ffd-45d4-b958-103e17ec37ac%2Fsieu49p_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q. 1. Light with an energy flux of 20 W/cm² falls on a
non-reflecting surface at normal incidence. If the
surface has an area of 30 cm², the total momentum
delivered (for complete absorption) during 30
minutes is:
(a) 36 x 10-5 kg m/s.
(c) 108 x 104 kg m/s.
(b) 36 x 104 kg m/s.
(d) 1.08 × 107 kg m/s.
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