Tag: inventions and inventors in science

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Multiple choice physics scientists inventions and inventors in science indian scientist: biography and achievements scientist and their achievements

Pick out the correct statement about the strong nuclear force from the following.
$S1$ : It is charge independent.
$S2$ : It is the strongest force in nature.
$S3$ : Its range is very large.
$S4$ : It is responsible for the stability of nuclei.

  1. $S1 and S3$

  2. $S1, S2 and S3$

  3. $S1, S2 and S4$

  4. $S2 and S3$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
its charge is independent.
it is responsible for the stability of nuclei
The range of strong nuclear force is very small, of about nuclear dimensions $(10^{-15}m)$.
Multiple choice physics scientists inventions and inventors in science indian scientist: biography and achievements scientist and their achievements

Which of the following statements is incorrect. ?

  1. Bohr gave theory of hydrogen atom and Yukawa, the theory of nuclear forces.

  2. Law of gravitation was discovered by Newton and principle of inertia by Galileo

  3. Laws of photoelectric effect were discovered by Einstein and laws of electromagnetic induction by Faraday.

  4. Neutron was discovered by J.J.Thomson and electron was discovered by James Chadwick.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Neutron was discovered by James Chadwick and electron was discovered by J.J.Thomson.

Multiple choice physics scientists inventions and inventors in science indian scientist: biography and achievements scientist and their achievements

Which of the following Indian scientists is known for his achievements in Mathematics?

  1. Jagadish Chandra Bose

  2. Srinivasa Ramanujan

  3. Vikram Sarabhai

  4. Salim Ali
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Srinivas Ramanujan is known for his great achievements in the field of Mathematics.

he made substantial contributions to mathematical analysis, number theory, 
infinite series, and continued fractions, including solutions to mathematical problems then considered unsolvable

Multiple choice physics scientists inventions and inventors in science indian scientist: biography and achievements scientist and their achievements

Which Indian scientist is popularly known as missile man of India? 

  1. Dr. A. P. J. Abdul Kalam

  2. Dr. C .V. Raman

  3. Dr. Har Gobind Khorana

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dr. A.P.J. Abdul Kalam was an aerospace scientist who served as the 11th President of India and played a pivotal role in India's missile and nuclear weapons programs.