MCQ
The angular momentum of electrons in an atom produces:
  • A
    Magnetic moment.
  • B
    ZEEMAN effect.
  • C
    Light.
  • D
    Nuclear fission.

Answer

  1. Magnetic moment.

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

For ferromagnetic material, the relative permeability (, versus magnetic intensity (H) has the following shape

(a)

(b)

(c)

(d)

Which of the following materials is non crystalline

(a) Copper

(b) Sodium chloride

(c) Wood 

(d) Diamond

Five equal resistances each of value R are connected in a form shown alongside. The equivalent resistance of the network

(a) Between the points B and D is R

(b) Between the points B and D is  

(c) Between the points A and C is R

(d) b, c

Refer to figure. Let $\Delta\text{U}_1$ and $\Delta\text{U}_2$ be the changes in internal energy of the system in the processes A and B. Then,
  1. $\Delta\text{U}_1>\Delta\text{U}_2$
  2. $\Delta\text{U}_1=\Delta\text{U}_2$
  3. $\Delta\text{U}_1<\Delta\text{U}_2$
  4. $\Delta\text{U}_1\neq\Delta\text{U}_2$
The value of electric field in an electromagnetic wave originating from a point source of light at a distance of  10 meter is $\text{E}=\frac{500\text{Volt}}{\text{m}}$ The electric field at a distance of 5 meter will be.
In a plane electromagnetic wave the phase difference between electric and magnetic field vectors is :

Three identical resistances A, B and C are connected as shown in the given figure. The heat produced will be maximum

(a) In B

(b) In B and C

(c) In A

(d) Same for A, B and C

An electric dipole placed in a non-uniform electric field can experience:
How many quantities are required to specify the magnetic field of the earth?

White light is incident on the interface of glass and air as shown in the figure. If green light is just totally internally reflected then the emerging ray in air contains

(a) Yellow, orange, red

(b) Violet, indigo, blue

(c) All colours

(d) All colours except green