Question
When light is refracted, which of the following does not change?

Answer

  1. 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

Similar questions

A magnet oscillating in a horizontal plane has a time period of $2$ second at a place where the angle of dip is $30^{\circ}$ and $3$ seconds at another place where the angle of dip is $60^{\circ}.$ The ratio of resultant magnetic fields at the two places is
 
If $N_0$ is the original mass of the substance of half life period $\mathrm{T}_{1 / 2}=5$  years, then the amount of substance left after $15$ years is
The velocity of light emitted by a source $S$ observed by an observer $O,$ who is at rest with respect to $S$ is $c.$ If the observer moves towards $S$ with velocity $v,$ the velocity of light as observed will be
Bohr's atom model assumes(a) The nucleus is of infinite mass and is at rest(b) Electrons in a quantized orbit will not radiate energy(c) Mass of electron remains constant(d) All the above conditions
 
 
 
 
To maintain a steady current through the conductor, some external device must do work. What does the external device provide?
If $m$ is mass of electron, $v$ its velocity, $r$ the radius of stationary circular orbit around a nucleus with charge $Ze,$ then from Bohr's first postulate, the kinetic energy $K = \frac{1}{2} m v ^2$of the electron in $\text{C.G.S.}$ system is equal to
Which of the following statement is incorrect(a) Both ac and dc dynamo have a field magnet(b) Both ac and dc dynamo have an armature(c) Both ac and dc dynamo convert mechanical energy into electrical energy(d) Both ac and dc dynamo have slip rings
 
 
 
 
Two uniform wires  A and  B are of the same metal and have equal masses. The radius of wire A is twice that of wire B. The total resistance of A and  B when connected in parallel is(a) 4 Ω when the resistance of wire A  is 4.25 Ω(b) 5 Ω when the resistance of wire A  is 4.25 Ω(c)  4 Ω when the resistance of wire  B is 4.25 Ω(d) 4 Ω when the resistance of wire  B is 4.25 Ω
 
 
 
 
Which of the following parameters is the same for molecules of all gases at a given temperature?
  1. Mass.
  2. Speed.
  3. Momentum.
  4. Kinetic energy.
The maximum current that flows through a fuse wire before it blows out varies with its radius as