MCQ
Wave front means:
  • All particles in it have same phase.
  • B
    Few particles are in same phase, rest are in opposite phase.
  • C
    All particles have opposite phase of vibrations.
  • D
    All particles have random vibrations.

Answer

Correct option: A.
All particles in it have same phase.

It is the imaginary surface representing corresponding points pf a wave that vibrate in unison. When identical waves having a common origin travel through a homogeneous medium, the corresponding crests and troughs at any instant phase.

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

A terrestrial telescope is made by introducing an erecting lens of focal length $f$ between the objective and eye piece lenses of an astronomical telescope. This causes the length of the telescope tube to increase by an amount equal to
According to the electromagnetic wave theory, light consists of electric and magnetic fields which are $.........$
A circular metal plate of radius R is rotating with a uniform angular velocity ω with its plane perpendicular to a uniform magnetic field B. Then the emf developed between the centre and the rim of the plate is
An electric dipole has a fixed dipole moment $\vec P$ which makes angle $\theta $ with respect to $x-$axis. When subjected to an electric field $\overrightarrow {{E_1}} $ $=E$$\hat i$ it experiences a torque $\overrightarrow {{T_1}} $ =$\;\tau \hat k$ When subjected to another electric field $\overrightarrow {{E_2}}  = \sqrt 3 {E_1}\hat j$ it experiences torque $\overrightarrow {{T_2}} $ = $ - \overrightarrow {{T_1}} $ The angle $\theta \;$ is.......$^o$
The current $I$, potential difference $V_L$ across the inductor and potential difference $V_C$ across the capacitor in circuit as shown in the figure are best represented vectorially as
To get three images of a single object, one should have two plane mirrors at an angle of......$^o$
The $H$ amount of thermal energy is developed by a resistor in $10\,s$ when a current of $4\,A$ is passed through it. If the current is increased to $16\,A$, the thermal energy developed by the resistor in $10\,s$ will be $........\,H$
In a fission reaction $_{92}^{236}U{ \to ^{117}}X{ + ^{117}}Y + n + n$, the binding energy per nucleon of $X$ and $Y$ is $8.5\, MeV$ whereas of $^{236}U$ is $7.6\, MeV$. The total energy liberated will be about _______ $MeV$
For the circuit shown below, the current through the Zener diode is......$mA$
Two electric bulbs ($60\,W$ and $100\,W$ respectively) are connected in series. The current passing through them is