Advertisements
Advertisements
प्रश्न
The usual form for 2 × 10–2 is not equal to 0.02.
विकल्प
True
False
Advertisements
उत्तर
This statement is False.
Explanation:
For usual form,
`2 xx 10^-2 = 2 xx 1/10^2` ...`[∵ a^-m = 1/a^m]`
= `2/100`
= 0.02
APPEARS IN
संबंधित प्रश्न
Express the given numbers in standard form.
31860000000
Express the number appearing in the given statement in standard form.
Charge of an electron is 0.000, 000, 000, 000, 000, 000, 16 coulomb.
Express the following numbers in standard form:
0.00072984
Express the following number in standard form.
4050000
To add the numbers given in standard form, we first convert them into numbers with ______ exponents.
Large numbers can be expressed in the standard form by using positive exponents.
Write 39,00,00,000 in the standard form.
An inch is approximately equal to 0.02543 metres. Write this distance in standard form.
About 230 billion litres of water flows through a river each day. How many litres of water flows through that river in a week? How many litres of water flows through the river in an year? Write your answer in standard notation.
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.
