Question

- Subjects Provided -

★ History Problem !!

• How Abdul Kalam earned his first wages ?

• When and where was Ustad Bishmillah Khan born ?

★ Maths Problem !!

• Write all the formulas of Logarithm.

• Write the formulas of Arithmetic Progression & Geometric Progression.

★ Chemistry Problem !!

• Define Isotopes.

• Define Isobars.

• What is the full from of amu ?

‡‡‡ Answer all !!
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Answer 1

History:

● During the Second World War, when the stoppage of trains was cancelled at Rameshwaram, the newspapers were bundled and thrown out of a moving train. Kalam's cousin, who distributed newspapers, asked him to help in collecting these bundles. This task helped Abdul Kalam earn his first wages.

● Ustad Bismillah Khan, often referred to by the title Ustad, was an Indian musician credited with popularizing the shehnai, a subcontinental wind instrument of the oboe class.He was born on March 21, 1915 in Dumaron.

Maths:

● 1. product rule

2. quotient rule

3. power rule

4. zero rule

5. the logarithm of base to a power rule

6. a base to logarithm power rule

7. identity rule

● a+ar square+ar cube and so on..

chemistry:

● Isotope, one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table and nearly identical chemical behaviour but with different atomic masses and physical properties. Every chemical element has one or more isotopes.

● Isobars are atoms of different chemical elements that have the same number of nucleons. Correspondingly, isobars differ in atomic number but have the same mass number.

● a.m.u stands for atomic mass unit..

"thanks"..

Answer 2

$\large\sf{history \: answers}$

Questions,

• How did Abdul Kalam earned his first wages?
• When and where was Ustad Bismillah Khan born?

Answers,

• This is the period of second world war, when Rameshwaram cancel the stoppage of trains.Abdul Kalam's cousin collected the bundles of newspapers which thrown by the train.This is the reason.

• Ustad Bismillah born in 21 March 1916(Dumraon).

$\large \sf{maths \: answers}$

Questions,

• Write the formula of Logarithm.
• Write the formulas of Arithmetic Progression & Geometric Progression.

Answers,

• Logb(m×n)=Logb(m)+Logb(n)

‎‎‎⠀⠀‎‎‎⠀ Logb(m/n)=Logb(m)-Logb(n)

‎‎‎⠀⠀‎‎‎⠀⠀Logb(x×y)=y Logb(x)

‎‎‎⠀⠀‎‎‎⠀⠀Log m√n=Logb(n)/m

‎‎‎⠀⠀‎‎‎⠀⠀m Logb(x)+n×Logb(y)=Logn(xymn)

• an=a+(n-1){Arithmetic} and an=a×rn-1 {Geometric}

$\large \sf{chemistry \: answers}$

Questions,

• Define lsotopes.
• Define lsobars.
• What is the full form of AMU?

Answers,

• Atoms with the same number of protons but that have a different number of neutrons.

• Atoms of different chemical element but have the same number of nucleons.

• AMU-Atomic Mass Unit