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Leaving Cert Physics
Work functions maths question help needed
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Work functions maths question help needed
appa
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Leaving Cert Physics
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5
Need help with this maths question
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5 Comments
Bobr12
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take away 4.15 from 3.68 to get kinetic energy on its own in the photoeletric equation. then convert this answer to joules by using your formula and tables book. then isolate v and solve for it ! hope this helped
Bobr12
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4.15 is equivalant to hf
Bobr12
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hf = 0 + 1/2mv^2
Bobr12
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ih yes and the mass in 1/2mv^2 is in your formula and tables under the constants
appa
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My guy appreciate that!
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