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The work function of a substance is The longest wavwlength of light that can cause photoelectron emission from this substance is approximately
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Question 1
A star initially has deuterons it product energy via the process and If the deuteron supply of the average power radiated by the state is , the deuteron supply of the state is exhausted in a time of the order of . The masses of the nuclei are as follows:
\displaystyle{M}{\left({p}\right)}={1.007}{a}\mu,{M}{\left({n}\right)}={1.008}{a}\mu,{M}{\left({H}{e}^{{{4}}}\right)}={4.001}{a}\mu.
Question 2
The Bohr radius of the fifth electron of phosphorous alom acting as a dopant in sillcon is …….. ÅQuestion 3
The probbility of electrons to be found in the conduction band of an intrinsit semiconductor at a finile temperature Question 4
A radicactive sample consider of two distinct species having equial number initially . The mean life time of one species is and that of the other is . The decay prodects in both cases are stable . A plot is made of the total number of radioactive nuclei as a function of time , which of the following figure best represent the from of this plot?
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| Question Text | The work function of a substance is The longest wavwlength of light that can cause photoelectron emission from this substance is approximately |
| Answer Type | Text solution:1 |
| Upvotes | 150 |
