Advertisements
Advertisements
प्रश्न
One Fermi is equal to 10–15 metre. The radius of a proton is 1.3 Fermis. Write the radius of a proton in metres in standard form.
Advertisements
उत्तर
The radius of a proton is 1.3 fermi.
One fermi is equal to 10–15 m.
So, the radius of the proton is 1.3 × 10–15 m.
Hence, standard form of radius of the proton is 1.3 × 10–15 m.
APPEARS IN
संबंधित प्रश्न
Express the given numbers in standard form.
0.00000000837
Express the given numbers in usual form.
1.0001 × 109
Express the following numbers in standard form:
846 × 107
Write the following numbers in the usual form:
3.25 × 10−7
The usual form for 2.03 × 10–5 is ______.
The standard form for 0.000037 is 3.7 × 10–5.
Write 0.000005678 in the standard form.
Special balances can weigh something as 0.00000001 gram. Express this number in the standard form.
Express the following in standard form:
Mass of a molecule of hydrogen gas is about 0.00000000000000000000334 tons.
A half-life is the amount of time that it takes for a radioactive substance to decay to one half of its original quantity.
Suppose radioactive decay causes 300 grams of a substance to decrease to 300 × 2–3 grams after 3 half-lives. Evaluate 300 × 2–3 to determine how many grams of the substance are left.
Explain why the expression 300 × 2–n can be used to find the amount of the substance that remains after n half-lives.
