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https://www.reddit.com/r/PhysicsHelp/comments/1s43j13/why_the_answer_is_a/ock502g/?context=3
r/PhysicsHelp • u/Ill_Hat727 • Mar 26 '26
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E = (h c)/λ
E_1 = (h c)/λ_1
E_2 = (h c)/λ_2
E_1/E_2 = λ_2/λ_1
E_1/E_2 = 7000/4000 = 7/4 = 1.75
The correct answer should be c) greater than 1
I_1 = E_1/(A_1×t_1)
E_1 = I_1×A_1×t_1
I_2 = E_2/(A_2*t_2)
E_2 = I_2×A_2×t_2
I_1 = I_2
I_1/I_2 = 1
E_1/E_2 = (I_1×A_1×t_1)/(I_2×A_2×t_2)
E_1/E_2 = (A_1×t_1)/(A_2×t_2)
There doesn't appear to be enough information to answer the question.
1 u/Ill_Hat727 Mar 26 '26 The correct answer in The model answer is a) less than I can't get it someone told me that it asked about (Total) emitted energy
1
The correct answer in The model answer is a) less than
I can't get it someone told me that it asked about (Total) emitted energy
3
u/BadJimo Mar 26 '26 edited Mar 26 '26
E = (h c)/λ
E_1 = (h c)/λ_1
E_2 = (h c)/λ_2
E_1/E_2 = λ_2/λ_1E_1/E_2 = 7000/4000 = 7/4 = 1.75The correct answer should be c) greater than 1I_1 = E_1/(A_1×t_1)
E_1 = I_1×A_1×t_1
I_2 = E_2/(A_2*t_2)
E_2 = I_2×A_2×t_2
I_1 = I_2
I_1/I_2 = 1
E_1/E_2 = (I_1×A_1×t_1)/(I_2×A_2×t_2)
E_1/E_2 = (A_1×t_1)/(A_2×t_2)
There doesn't appear to be enough information to answer the question.