Download App

Atoms — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsAtoms1 Mark
Question
The main defect of Bohr's atom model is :
✓

Answer

  1. failed to explain larger atoms
Explanation:
Bohr's model can only clearly explain hydrogen or hydrogen-like atoms, it fails when applied to larger and heavier atoms like iron, gold, mercury, etc.

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 "M.C.Q (1 Marks)" from Atoms→Atoms — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Which of one is correct
→
What is the study of electric charges in motion called?
→
Two bulbs are in parallel and they together consume 48 W from a battery of 6 V. The resistance of each bulb is(a) 0.67 Ω(b) 3.0 Ω(c) 4.0 Ω(d) 1.5 Ω
       
→
In a sensitive Wheatstone bridge, current in the galvanometer in the state of slight deflection from the position of balance is:
→
Three point charges are placed at the corners of an equilateral triangle. Assuming only electrostatic forces are acting(a) The system can never be in equilibrium(b) The system will be in equilibrium if the charges rotate about the centre of the triangle(c) The system will be in equilibrium if the charges have different magnitudes and different signs(d) The system will be in equilibrium if the charges have the same magnitudes but different signs
 
 
 
 
→
The magnetic field lines due to a bar magnet are correctly shown in
→
A cylindrical rod magnet has a length of $5 \ cm$ and a diameter of $1 \ cm .$ It has a uniform magnetisation of $5.30 \times 10^3 \mathrm{Amp} / \mathrm{m}^3$. What its magnetic dipole moment
→
The potential difference applied to an X-ray tube is increased. As a result, in the emitted radiation:
  1. The intensity increases.
  2. The minimum wavelength increases.
  3. The intensity remains unchanged.
  4. The minimum wavelength decreases.
→
When NPN transistor is used as an amplifier(a) Electrons move from base to collector (b) Holes move from emitter to base(c) Electrons move from collector to base(d) Holes move from base to emitter
 
 
 
 
→
Electric potential at an equatorial point of a small dipole with dipole moment $P(r,$ distance from the dipole$)$ is
→