Download App

Light Waves — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsLight Waves1 Mark
MCQ
When light is refracted, which of the following does not change?
  • A
    Wavelepgth.
  • ✓
    Frequency.
  • C
    Velocity.
  • D
    Amplitude.
✓

Answer

Correct option: B.
Frequency.
Explanation:
Frequency of a light wave doesnt change on changing the medium of propagation of light.

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

Similar questions

$62.5 \times 10^{18}$ electrons per second are flowing through a wire of area of cross-section $0.1 \mathrm{~m}^2$, the value of current flowing will be
→
If the wavelength of light in vacuum be $\lambda$, the wavelength in a medium of refractive index $n$ will be
→
A semiconductor dopped with a donor impurity is
→
Electrons with de-Broglie wavelength $\lambda$ fall on the target in an $\mathrm{X}$-ray tube. The cut-off wavelength of the emitted $\mathrm{X}$ rays is
→
The de Broglie wavelength of an electron having kinetic energy $E$ is $\lambda$. If the kinetic energy of electron becomes $\frac{E}{4}$, then its de-Broglie wavelength will be :
→
A raindrop falls near the surface of the earth with almost uniform velocity because:
→
Two particles $X $ and $Y$, of equal mass and with unequal positive charges, are free to move and are initially far away from each other. With $Y$ at rest, $X$ begins to move towards it with initial velocity $u$. After a long time, finally
→
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
→
A convex lens forms a real image of a point object placed on its principal axis. If the upper half of the lens is painted black, the image will
→
A barometer kept in an elevator reads 76cm when it is at rest. If the elevator goes up with increasing speed, the reading will be:
→