MCQ
What type of nature do electromagnetic waves have?
  • A
    Dual nature
  • B
    Wave nature
  • C
    Particle nature
  • D
    Photon nature

Answer

  1. Dual nature

Explanation:

Electromagnetic radiations have a wave nature as well as properties alike to those of particles. Therefore, electromagnetic radiations are emissions with a dual nature, i.e. it has both wave and particle aspects.

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

Kirchhoff's second law in any closed circuit represents:
A chlorine atom whose nucleus contains 17 protons and 20 neutrons. Find out the composition of the nucleus of an isotope of chlorine?
Potential difference in ac circuit is $V =20 \sin \omega t$ and current flowing is $I =5 \cos \omega t$, then power dissipated in watts is :
The pressure of an ideal gas is written as $\text{p}=\frac{2\text{E}}{3\text{v}}.$ Here E refers to:
  1. Translational kinetic energy.
  2. Rotational kinetic energy.
  3. Vibrational kinetic energy.
  4. Total kinetic energy.

A point object is placed at a distance of 30 cm from a convex mirror of focal length 30cm. The image will form at

(a) Infinity

(b) Focus

(c) Pole

(d) 15 cm behind the mirror

Which of the following statements is true for an N-type semi-conductor

(a) The donor level lies closely below the bottom of the conduction band

(b) The donor level lies closely above the top of the valence band

(c) The donor level lies at the halfway mark of the forbidden energy gap

(d) None of above

Lenz's law is consequence of the law of conservation of

(a) Charge

(b) Momentum

(c) Mass 

(d) Energy

As a result of interference of two coherent sources of light, energy is

(a) Increased

(b) Redistributed and the distribution does not vary with time

(c) Decreased

(d) Redistributed and the distribution changes with time

Assertion     :   If the distance between parallel plates of a capacitor is halved and dielectric constant is made three times, then the capacitor becomes 6 times.

Reason        : Capacity of the capacitor does not depend upon the nature of the material.

(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.

The wiring of a house has resistance 6 A 100 W bulb is glowing. If a geyser of 1000 W is switched on, the change in potential drop across the bulb is nearly

(a) Nil

(b) 23 V

(c) 32 V   

(d) 12 V