Download App

Atoms — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsAtoms1 Mark
Question
In Rutherford's scattering model, it is shown that : (i) mostly alpha particle passes direct linearly without scattering, (ii) while some scattered by making large angle and some of these after scattering returned back to their path. What is the information obtained from these about atomic structure?
✓

Answer

(i) Maximum part is empty inside the atom.
(ii) Positive charge is conentrated at tiny space (nucleus) in atom.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Atoms→Atoms — all question types→Physics STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

Suppose that the electric field part of an electromagnetic wave in vacuum is $\text{E}=\{(3.1 \ \text{N}/\text{C}\cos[(1.8 \text{rad}/ \text{m}) \text{y}+(5.4\times10^6 \ \text{red}/\text{s}\text{t}]\hat{\text{i}}\}$.
  1. What is the direction of propagation?
  2. What is the wavelength λ ?
  3. What is the frequency ν ?
  4. What is the amplitude of the magnetic field part of the wave?
  5. Write an expression for the magnetic field part of the wave.
→
Define displacement current.
→
Name the type of charge carriers in p-n junction when reverse biased.
→
A proton and an electron have same kinetic energy. Which one has greater de-Broglie wavelength and why?
→
Choose the correct alternative:
Alloys of metals usually have (greater/ less) resistivity than that of their constituent metals.
→
If the speed of a transverse wave on a stretched string of length 1m is 60m/s, what is the fundamental frequency of vibration?
→
Electric current is flowing in north direction in an electric line. What will be direction of magnetic field due to electric current above the line?
→
A capillary tube of radius 0.50mm is dipped vertically in a pot of water. Find the difference between the pressure of the water in the tube 5.0cm below the surface and the atmospheric pressure. Surface tension of water = 0.075N/m.
→
A metal block of density 6000kg m-3 and mass 1.2kg is suspended through a spring of spring constant 200N m-1. The spring-block system is dipped in water kept in a vessel. The water has a mass of 260g and the block is at a height 40cm above the bottom of the vessel. If the support to the spring is broken, what will be the rise in the temperature of the water. Specific heat capacity of the block is 250Jkg-1 K-1 and that of water is 4200Jkg-1 K-1. Heat capacities of the vessel and the spring are negligible.
→
A ring is uniformly charged. The total charge on ring is q and its radius is r. If it rotates on its axis by n rounds per second then what is the magnitude of produced magnetic field at the center?
→