With neat diagram , explain various modes of vibration of a stretched string.

In a stretched string.

With a neat labelled diagram explain rainbow formation

State the formula for the velocity of transverse waves on stretched wire and obtain an expression for fundamental frequency of vibration of stretched string.

What is LED? With neat diagram, explain the construction of a LED.

Answer the following questions : With a neat labelled diagram , explain the working of a refracting telescope .

State and explain laws of vibrating strings ?

Show that even as well as odd harmonics are present as overtone in modes of vibration of string

With the help of a neat labelled diagram , explain the formation of spinal nerves.

With the help of a neat labelled diagram explain the process of production of transgenic potatoes as edible vaccines.

With a neat diagram, explain the construction Q and working of Fery's black body.