पढ़ते समय करो ये काम 100% फोकस होगा? 10 Interesting Facts | Amazing Facts | #shorts #padhaithefact

The gravitational attraction between electron and proton in a hydrogen atom is weaker than the coulomb attraction by a factor of about 10^(-40) . An alternative way of looking at this fact is to estimate the radius of the first Bohr orbit of a hydrogen atom if the electron and proton were bound by gravitational attraction. You will find the answer interesting.

Rahul invested equal sums of money at compound interest under two schemes A and B. Under scheme A, the interest rate was 10% per annum and under scheme B, the interest rate was 12%p.a. The compound interest after two years on the sum invested in scheme A was ₹ 1,050. How much is the interest earned under scheme B after two years, if the interest is compounded annually in both schemes? राहुल ने दो योजनाओं A और B में चक्रवृद्धि ब्याज पर बराबर राशियाँ निवेश की। योजना A में, ब्याज की दर 10% प्रति वर्ष थी तथा योजना B में, ब्याज की दर 12% थी। योजना A में निवेशित राशि पर दो वर्षों के बाद चक्रवृद्धि ब्याज 1050 रुपये था। दो वर्षों के बाद योजना B में कितना ब्याज प्राप्त होगा, यदि दोनों ही योजनाओं में ब्याज का संयोजन वार्षिक है।

CO_2 and H_2 O absorbs strongly in the infrared rrgion and its presence in the atmospheere dectrases the loss fo heat form the enrth by radistiion . This global warming is called the greenhouse effect (other gases , including the oxides of nitraongen form car exhauset freons from aerosols and refrigeratirs and methane from bacteria in the soil and in the rument cows , also add to the reeenhouse effect ). The concentration fo atmospheric CO_2 has increased by 10% . The is rsulting in the increase in the mean temperature fo the earth by 2. 5^@ C , varying form 2^@ C t the equlator to 4^@ C at the poles . This could have dramatic effects on the climate. Instead of monitoring carbon dioxide suggest another gas that scientists could studey to substantiate the fact that CO_2 conentration is steadily increasing in the atmosphere ?

A sum of Rs 1000 is invested at 8% simple interest per year.Calculate the interest at the end of each year.Do these interests form an AP? If so,find the interest at the end of 30 years making use of this fact.

The simple interest on a sum of money at 10% per annum for 2 years is Rs. 8,100, Compounded annually. What would be the compound interest (in Rs.) on the same sum for the given period at the rate of interest ? एक धनराशि पर 10% प्रति वर्ष की दर से 2 वर्षों का साधारण ब्याज 8100 रुपये है। दी गयी अवधि के लिए ब्याज दर पर इसी राशि का चक्रवृद्धि ब्याज (रुपये में) कितना होगा?

A certain sum amounts to Rs 29282 in 4 years at 10% per annum, when the interest is compounded annually. What is the simple interest on the same sum for same time at the same rate? निश्चित राशि 10% प्रति वर्ष की दर से 4 वर्षों में 29282 रुपये हो जाती है, जब ब्याज की चक्रवृद्धि वार्षिक है | इसी राशि पर इसी दर से इतने ही समय का साधारण ब्याज ज्ञात करें |

A sum of ₹ 8,000 invested at 10% pa amounts to ₹ 9,261 in a certain time, interest compounded half-yearly. What will be the compound interest (in ₹ ) on the same sum for the same time at double the earlier rate of interest, when interest is compounded annually? / 10% प्रति वर्ष की दर से निवेश की गयी 8,000 रुपये की एक राशि अर्धवार्षिक चक्रवृद्धि ब्याज की दर से किसी निश्चित समय में 9,261 रुपये हो जाती है | इसी राशि पर इतने ही समय के लिए पूर्व की तुलना में दोगुने दर से चक्रवद्धि ब्याज ज्ञात कीजिए, यदि ब्याज का संयोजन वार्षिक है |