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PhysicsModern PhysicsAtomic structureEasy2 minPYQ_2020
PhysicsEasysingle choice

Number of photons emitted by100 Wsodium lamp in one second is(Given λ=5.89×10-9m;h=6.625×10-34J s)

Options:

Answer:
C
Solution:

∵   Power=N thCλ

⇒  Nt=pλhC

=1005.89×10-96.625×10-34×3×108

=5.896.625×3×102-9+34-8

=0.296×1019=2.96×1018

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Atomic structure
⏱ 2mℹ️ Source: PYQ_2020

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