Question

The nucleus was first discovered in 1911 by Lord Rutherford and his associates by

experiments on scattering of alpha particles by atom. The experimental results indicated

that the size of the nucleus is 100000 times smaller than the size of atom. (4)

(i) Ratio of mass of nucleus with mass of atom is approximately

(a) 1

(b) 10

(c) 1000

(d) 10000

(ii) Masses of nuclei of hydrogen, deuterium and tritium are in ratio

(a) 1:2:3

(b) 1:1:1

(c) 1:1:2

(d) 1:2:4

(iii) What is nucleus density?

(iv) If R is radius and A is the mass number then log R versus log A graph will be

(a) A straight line

(b) A parabola

(c) An ellipse

(d) None of thes​

Answer 1

Answer:

I)

c) 1000

II)c) 1:1:2

Explanation:

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