Atoms and Nuclei-Alpha-Particle Scattering Experiment (NEET Physics): Questions 1 - 3 of 3

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2098 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 1

» Atoms and Nuclei » Alpha-Particle Scattering Experiment

MCQ▾

Question

An X-ray tube is operating at 100 kV. The minimum wavelength of X-ray and maximum velocity of the electrons striking the anti-cathode are,

Choices

Choice (4) Response

a.

0.098 Å, 1.658 × 10 8 m/s

b.

0.124 Å, 1.875 × 10 8 m/s

c.

0.322 Å, 3.624 × 10 8 m/s

d.

0.226 Å, 2.875 × 10 8 m/s

Question number: 2

» Atoms and Nuclei » Alpha-Particle Scattering Experiment

MCQ▾

Question

An α- particle of 5 MeV energy strikes with a nucleus of uranium at stationary at an scattering angle of 180°. The nearest distance up to which α-particle reaches the nucleus will be closest to,

Choices

Choice (4) Response

a.

1012cm

b.

1 A

c.

1010cm

d.

1015cm

Question number: 3

» Atoms and Nuclei » Alpha-Particle Scattering Experiment

Assertion-Reason▾

Assertion (Ꭺ)

The force of repulsion between atomic nucleus and α -particle varies with distance according to inverse square law.

Reason (Ꭱ)

Rutherford did α -particle scattering experiment.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is false but Ꭱ is true

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

Sign In