Question

1. Name the Indian sage who first propounded the idea of atom (anu).

2. Draw a labelled diagram to show how cathode rays are produced.

3. What is an electron? State its charge in coulombs.

4. How many electrons will weigh as much as one atom of hydrogen?

5. Who discovered positively charged rays?​

Answer 1

Answer:

1-He called that indivisible particle “Parmanu,” or “Anu,” which literally means atom. Acharya Kanad thought of the atom as minute objects that are invisible to the naked eye, and considered it indestructible and hence, eternal.

Answer 2

Answer:

1.Maharishi Kanad

3.a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

Electron charge, (symbol e), fundamental physical constant expressing the naturally occurring unit of electric charge, equal to 1.602176634 × 10−19 coulomb.

4. 1.67×10^-24

5 Eugene Goldstein.