Who revealed biochemical nature of the transforming principle? How was it done?

How are metals found in nature?

Ravi applied a force of 10 N and moved a book 30 cm in the direction of the force. How much was the work done by Ravi ?

Raj applied a force of 20 N and moved a book 40 cm in the direction of the force. How much was the work done by Raj?

Solve the following examples: Ravi applied a force of 10 N and moved a book 30 cm in the direction of the force. How much was the work done by Ravi?

The principle naturally occurring auxin is

Answer the following questions : How does the rate of rection depend on the nature of the reactants? Illustrate with suitable example.

State the principle of workingof transformer?

Describe natural chain of transformation of energy.

What is transformation? Who discovered it?

What is meant by latent heat? How will the state of matter transform if latent heat is given off?