class 12 physics


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12.
The half-life of 92 U 238 against alpha decay is 4.5 x 109 years. How many disintegrations per second occur in 1 g of 92 U 238 ? Suggested solution: Again, since one k mole of any isotope contains Avogadro's number of atoms, there fore 1 g of 92 U 238 contains Half life T = 4..
12.
Calculate the dispersive power for crown and flint glass from the following data: C D F Crown 1.5145 1.5170 1.5230 Flint 1.6444 1.6520 1.66..
Numerical 12
An electron is projected with a speed of 10 5 ms - 1 at right angles to a magnetic field of 0.019 G. Calculate the radius of the circle described by the electro..
Atoms and Nuclei Problems - Numerical 12
12. - The half-life of 92 U 238 against alpha decay is 4.5 x 109 years. How many disintegrations per second occur in 1 g of 92 U 238 ? Suggested solution: Again, since one k mole of any isotope contains Avogadro's number of atoms, there fore 1 g of 92 U 238 contains Half life T = 4.5 10 9..
Grade 12 Physics Program
- This is a representative list of topics covered in our Grade 12 Physics program - however all programs will be customized for the individual studen..
Moving Charges and Magnetism Problems - Numerical 12
12. - An electron is projected with a speed of 10 5 ms - 1 at right angles to a magnetic field of 0.019 G. Calculate the radius of the circle described by the electro..
Suggested answer:
Collector current, Now, or..
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