ATQ,
Diameter of the first circle = 2×6 = 12. The side of the square PQRS = Diameter of the second circle =12/√2 Area of the first circle = 36π. Sum of areas of circles = 
A sound with a single frequency is called a:
Total mechanical energy =
Which of the following is the ultimate source of energy?
When heated from 0° to 10°C volume of a given mass of water will -
Lamberts law is related to –
The term ‘Isoneph' indicates the lines of equal –
A plane electromagnetic wave travels in vacuum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If t...
The electric and magnetic fields of an electromagnetic wave are _____________
In which type of motion does the velocity of a body vary with time?
What was invented by 'Zacharias Janssen'?
