Question

FROM PHYSICS

How many years would it take to spend one Avogadro's number of rupees at the rate of
10 lakhs of rupees in one second ?

NO COPIED ANSWERS !! ​

Answer 1

1 lakh is 100 000 or 10^5
10 lakhs is 10^6

Avogadro’s number = 6.02 x 10^23

Time taken = 6.02 x 10^23 / 10^6 = 6.02 x 10^17 s

1 year = 3600 x 24 x 365 s = 31 536 000 s

Years taken = 6.02 x 10^17 / 31 536 000

= 1.91 x 10^10 yrs

Hope this helps.

Answer 2

Answer:

$1.9089\times10^1^0years$

Explanation:

Given Problem:

How many years would it take to spend one Avogadro's number of rupees at the rate of 10 lakhs of rupees in one second ?

Solution:

Given that,

Number of rupees spent in one second = $10^5$

Number of rupees spent in one year =$10^6\times60\times60\times24\times365$

Now,

Avagadro's number of rupees will be spent = $\dfrac{6.02\times10^2^3}{10^6\times60\times60\times24\times365}$

⇒ $19.089\times10^9yrs$

⇒$1.9089\times10^1^0yrs$

Hence,

The correct answer is $1.9089\times10^1^0yrs$