Download App

Atoms — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsAtoms1 Mark
MCQ
How did de – Broglie modify Bohr’s postulate?
  • A
    De – Broglie suggested to not take angular momentum into consideration.
  • B
    De – Broglie suggested introducing an electric field near the atom.
  • C
    De – Broglie suggested that electrons behaved like a wave.
  • D
    De – Broglie did not modify Bohr’s second postulate.
✓

Answer

  1. De – Broglie suggested that electrons behaved like a wave.

Explanation:

de – Broglie hypothesis did modify Bohr’s second postulate.

This postulate of Bohr regarding the quantization of the angular momentum of an electron was further explained by Louis de Broglie.

According to de – Broglie, a moving electron in its circular orbit behaves like a particle-wave.

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→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

200 MeV of energy may be obtained per fission of . A reactor is generating 1000 kW of power. The rate of nuclear fission in the reactor is

(a) 1000  

(b) 2  

(c) 3.125  

(d)  931
→
The velocity of a particle is zero at t = 0.
  1. The acceleration at t = 0 must be zero.
  2. The acceleration at t = 0 may be zero.
  3. If the acceleration is zero from t = 0 to t = 10s, the speed is also zero in this interval.
  4. If the speed is zero from t = 0 to t = 10s the acceleration is also zero in this interval.
→
By properly combining two prisms made of different materials, it is possible to:
  1. Have dispersion without average deviation.
  2. Have deviation without dispersion.
  3. Have both dispersion and average deviation.
  4. Have neither dispersion nor average deviation.
→
A body has its centre of mass at the origin. the x-coordinates of the particles:
  1. May be all positive.
  2. May be all negative.
  3. May be all non-negative.
  4. May be positive for some cases and negative in other cases.
→
A resistance R is to be measured using a meter bridge. Student chooses the standard resistance S to be 100Ω. He finds the null point at l1 = 2.9cm. He is told to attempt to improve the accuracy. Which of the following is a useful way?
→
A Zener diode:
→
A metal rod moves at a constant velocity in a direction perpendicular to its length. A constant uniform magnetic field exists in space in a direction perpendicular to the rod as well its velocity. Select correct statements (s) from the following.
→
In the given figure, a current of constant magnitude is flowing in the wire AB. Direction of induced current flowing through the wire is:
Image
→

The magnifying power of a microscope with an objective of 5 mm focal length is 400. The length of its tube is 20 cm. Then the focal length of the eye-piece is

(a) 200 cm

(b) 160 cm  

(c) 2.5 cm

(d)  0.1 cm  
→

The capacitor of capacitance 4μF and 6 μF are connected in series. A potential difference of 500 volts applied to the outer plates of the two capacitor system. Then the charge on each capacitor is numerically

(a) 6000 C

(b) 1200 C

(c) 1200 μC

(d) 6000 μC  
→