Ultrasonic waves
X-rays
Light waves
Sound waves
Which of the following, can neither be created nor be destroyed?
Which of the given is the fundamental quantity
Which of the given waves is used for communication by artificial satellites
Which of the law of thermodynamics states that there is always a loss of energy in any transfer of energy ?
Which of the statement is incorrect about the simple microscope?
Which of these commutation methods uses an external pulse for commutation?
Which of these is exhibiting kinetic energy?
Which of these is NOT a product of a fuel cell?
Which of these is not a simple machine?
Which of these is the cause of Friction?