Download App

Electromagnetic Waves — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectromagnetic Waves1 Mark
MCQ
Maxwell's equation describe the fundamental laws of.
  • A
    electricity
  • B
    magnetism
  • C
    mechanics
  • D
    both (A) and (B)
✓

Answer

  1. both (A) and (B)

Explanation:

Maxwell's equation describe the fundamental laws of electricity and magnetism. His equations describe how electric and magnetic fields are generated and altered by each other and by charges and currents.

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 Electromagnetic Waves→Electromagnetic Waves — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

A  at rest decays into 2γ  rays . Then which of the following can happen

(a) The two   move in same direction

(b) The two   move in opposite direction

(c) Both repel each other

(d) Both attract each other
→
A conducting gas is in the form of a long cylinder. Current flows through the gas along the length of the cylinder. The current is distributed uniformly across the cross-section of the gas. Disregard thermal and electrostatic forces among the gas molecules. Due to the magnetic fields set up inside the gas and the forces which they exert on the moving ions, the gas will tend to:
→

The thermionic emission of electron is due to

(a) Electromagnetic field

(b) Electrostatic field

(c) High temperature

(d) Photoelectric effect
→
NAND and NOR gates are called universal gates primarily because they:
→

A storage battery has e.m.f. 15 volts and internal resistance 0.05 ohm. Its terminal voltage when it is delivering 10 ampere is

(a) 30 volts

(b) 1.00 volts

(c) 14.5 volts

(d) 15.5 volts
→
Magnetic lines of force due to a bar magnet do not intersect because:
→
Two small balls having the same mass and charge and located on the same vertical at heights h1 and h2 are thrown in the same direction along the horizontal at the same velocity v. The first ball touches the ground at a distance l from the initial vertical. At what height H2 will the second ball be at this instant ? The air drag and the effect of the charges induced on the ground should be neglected.
→

Assertion :   The specific charge for positive rays is a characteristic constant.

Reason     : The specific charge depends on charge and mass of positive ions present in positive rays.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c) If assertion is true but reason is false.

(d) If the assertion and reason both are false.
→
Give the SI unit of magnetic dipole moment.
→
A metallic particle having no net charge is placed near a finite metal plate carrying a positive charge. The electric force on the particle will be:
→