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Introduction and Origins (in Hindi)
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Deinition of waves, types of mechanical waves and vibrations in a stretched string.

Udit Gupta is teaching live on Unacademy Plus

Udit Gupta
A Mechanical Engineer from NIT Allahabad here to help learners with physics. Also a Star ⭐ educator.

U
Unacademy user
sir isme waves on string and sound waves full course hai ??
Udit Gupta
7 months ago
light waves is not here.. rest we have 90% portion here
Udain Srivastava
7 months ago
sir wave on string and sound is here ??
Udit Gupta
7 months ago
yes
Udain Srivastava
7 months ago
only wave optics is not here ??
Udit Gupta
7 months ago
yes
Udain Srivastava
7 months ago
sir course on photoelectric effect and matter waves
what is the total no of lesson in this course sir and when would you going to complete it
Udit Gupta
a year ago
in some time it would be complete say 1st week of december..
Aditya Singh
a year ago
okkkkk sir please complete it asap because exam is approaching
Foxy toxy
10 months ago
Sir suggest me any book with solved example for entrance exam neet 😞😞😞
πd^2/4?? it is area not volume.
Udit Gupta
9 months ago
sorry.. my bad.. it slipped out..
Gagandeep Singh
9 months ago
ok
sir are all the topics covered in this video???
Udit Gupta
10 months ago
yes most of them.. a little bit is left.. try a reference book for that
  1. Udit Gupta Ex-VMC Physics Faculty


  2. WELCOME TO THE 1ST LESSON IN WAVES. The sub-topics include: vibrations in a stretched string. Visit: unacademy.com/plus to register for SPECIAL CLASSES. Definition, mechanical waves, transverse waves, longitudinal waves &X


  3. DEFINITION Wave is defined as a disturbance which propagates energy and momentum from one place to the other without the transport of matter. Sound waves in form of thunder Light Waves


  4. | MECHANICAL WAVE (MEDIUM NECESSARY) Method of energy propagation, in which disturbance propagates with definite velocity without changing its form, is called mechanical wave. Energy and momentum propagate by motion of particles of medium. But medium remains at previous position, mass transfer does not take place. Propagation is possible due to property of medium viz. elasticity and inertia. Mechanical waves maybe of two types:


  5. TRANSVERSE WAVES The particles of medium vibrate in a direction perpendicular to the direction of propagation of wave. Eg. Vibration of string, the surface waves produced on the surface of solid and liquid. Crest and trough are formed.


  6. LONGITUDINAL WAVES Vibration of the particles of the medium are in the direction of wave propagation. Eg. Sound waves, waves in gases. Wave proceeds in form of compression (C) and rarefaction (R). At places of compression the pressure and density are maximum, while at places of rarefaction those are minimum. R C R


  7. VIBRATION IN A STRETCHED STRING Transverse stationary waves are formed on a stretched string fixed at both ends. Speed of waves in a stretched string is given by: u = |-, where T is the tension of the string, is the mass per unit length of the string. Laws of vibrating stretched string: The fundamental frequency of a stretched string is given by v - 1 T 1 T 2LE =


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  9. 196.1k 4 views Udit Gupta #6 Educator in IIT JEE MNNIT Allahabad graduate, Ex-VMC faculty of Physics, Star Educator, Physics enthusiast 21.6k 4 52 Message R Followers Following Courses Video call with Udit Schedule a call for 200 New feature Video Call All courses (52) HINDI PHYSICS MOCK QUESTIONS (Hindi) Problems of Various Topics to Encounter IIT JEE Mains 2019 5.0-216 6 views 18 hours ago Udit Gupta 34 HINDI PHYSICS PREVIOUS YEAR QUESTION (Hindi) Practice Set in DC Circuits for IT JEE Mains 2019


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