Question

In hydrogen atom which quantity is integral multiple of  

(a) Angular momentum

(b) Angular velocity

(c) Angular acceleration

(d) Momentum

Answer

(a) Angular momentum

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

Similar questions

The current which is assumed to be flowing in a circuit from positive terminal to negative, is called:

The process by which a heavy nucleus splits into light nuclei is known as

(a) Fission

(b) α- decay

(c) Fusion

(d) Chain reaction

Consider the two following statements A and B and identify the correct choice given in the answers;

(A) In photovlotaic cells the photoelectric current produced is not proportional to the, intensity of incident light.

(B) In gas filled photoemissive cells, the velocity of photoelectrons depends on the wavelength of the incident radiation.

(a) Both A and B are true

(b) Both A and B are false

(c) A is true but B is false

(d) A is false B is true

Let np and ne be the number of holes and conduction electrons in an intrinsic semiconductor.
Which of the following parameters are the same for all hydrogen-like atoms and ions in their ground states?
  1. Radius of the orbit.
  2. Speed of the electron.
  3. Energy of the atom.
  4. Orbital angular momentum of the electron.

When a ray of light emerges from a block of glass, the critical angle is

(a) Equal to the angle of reflection

(b) The angle between the refracted ray and the normal

(c) The angle of incidence for which the refracted ray travels along the glass-air boundary

(d) The angle of incidence

The maximum energy of electrons released in a photocell is independent of:
Two parallel circular coils of equal radii having equal number of turns placed coaxially and separated by a distance equal to the radii of the coils carrying equal currents in same direction are known as:

A bright star is indicated to have a brightness magnitude of – 5 compared to a star of brightness zero magnitude. It means that this star compared to the reference star of zero brightness is           

(a) 100 times less bright

(b) 5 times more bright

(c) 5 times less bright

(d) 100 times more bright

Barrier potential of a P-N junction diode does not depend on

(a) Temperature

(b) Forward bias

(c) Doping density

(d) Diode design