Question
Define wavelength. Give its SI units.
✓
Answer
The wavelength is the distance between two successive crests or two successive troughs on a transverse wave.
It is also equal to the distance between any two points where the particles are passing through their respective mean positions in the same direction.
It is also the distance between two successive compressions or two successive rarefactions on a longitudinal wave.
The SI unit of wavelength is metre (m).
It is also equal to the distance between any two points where the particles are passing through their respective mean positions in the same direction.
It is also the distance between two successive compressions or two successive rarefactions on a longitudinal wave.
The SI unit of wavelength is metre (m).
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Draw a labelled diagram to show the various parts of a step-up transformer and step down transformer.
A man standing between two cliffs produces a sound and hears two successive echoes at intervals of $3s$ and $4s$ respectively. Calculate the distance between the two cliffs. The speed of sound in the air is $330 ms^{−1}.$
→Name the type of energy possessed by a
(i) stretched catapult (ii) hot iron
(iii) wound up clock
(i) stretched catapult (ii) hot iron
(iii) wound up clock
Find the effective resistance in the following circuit diagrams (Fig.):
Draw a ray diagram to show the appearance of a stick partially immersed in water explain your answer.
The speed of light in air is $3 \times 10^8 ms^{-1}$. Calculate the speed of light in water. The refractive index of water is $4 / 3$.
→A pair of nut crackers is 12 cm long. An effort of 10 gf is required to crack a nut which is passed at a point 3 cm from the finger. Calculate the load Fig.
Distinguish between a real and a virtual image.
What are the types of emission?
Fig show a system of four pulleys. The upper two pulleys are fixed and the lower two are movable.
(i) Draw a string around the pulleys. Also show the place and direction in which the effort is applied.
(ii) What is the velocity ratio of the system?
(iii) What is the mechanical advantage of the system?
(iv) What assumption do you make in arriving at your answer in part (iii)?