MCQ
Wavefront of a wave has direction with wave motion:
  • A
    Parallel
  • Perpendicular
  • C
    Opposite
  • D
    At an angle of $\theta$

Answer

Correct option: B.
Perpendicular

Direction of wave is perpendicular to the wavefront.

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

Radioactive nuclei that are injected into a patient collect at certain sites within its body, undergoing radioactive decay and emitting electromagnetic radiation. These radiations can then be recorded by a detector. This procedure provides an important diagnostic tool called
The radiation of intensity $I$ is falling obliquely on a surface. Area of surface exposed to radiation is $A$. Select correct alternative where $\beta $ is a constant and depends upon nature of surface.

where $\beta$ is a constant and depends upon nature of surface.

Mixed $H{e^ + }$ and ${O^{2 + }}$ ions (mass of $H{e^ + } = 4\,\,amu$ and that of ${O^{2 + }} = 16\,\,amu)$ beam passes a region of constant perpendicular magnetic field. If kinetic energy of all the ions is same then
The current in the following circuit is ........... $A$
One metre length of wire carries a constant current. The wire is bent to form a circular loop. The magnetic field at the centre of this loop is $B$. The same is now bent to form a circular loop of smaller radius to have four turns in the loop. The magnetic field at the centre of this new loop is
If a small amount of antimony is added to germanium crystal:
The rays of different colours fail to converge at a point after going through a converging lens. This defect is called:
Two magnets are held together in a vibration magnetometer and are allowed to oscillate in the earth's magnetic field with like poles together, $12$ oscillations per minute are made but for unlike poles together only $4$ oscillations per minute are executed. The ratio of their magnetic moments is
In the electrolysis of $\text{NaCl:}$
In an experiment, electrons are accelerated, from rest, by applying, a voltage of $500 \,V.$ Calculate the radius of the path if a magnetic field $100\,mT$ is then applied. [Charge of the electron $= 1.6 \times 10^{-19}\,C$ Mass of the electron $= 9.1 \times 10^{-31}\,kg$ ]