The amplitude of sound waves determines the loudness of sound. Following factors affect the amplitude of sound waves: The amount of energy... View Article
Ultrasonic waves are sound waves with frequency higher than 20 kHz. Ultrasonic waves have similar physical properties except that humans cannot... View Article
PNP transistors have a wide variety of applications and following are some of them: PNP transistors are used as switches. PNP transistors are... View Article
Is gravity a force? Yes!! Gravity is the force of attraction between all objects in the universe. Gravity is a natural phenomenon by which all... View Article
Vernier Caliper is a very precise instrument. This instrument was introduced by Pierre Vernier in the year 1631.The reading error on a vernier... View Article
Why is the electric field inside a conductor zero? The charges reside only on the surface of the conductor, it is absent inside the conductor. So... View Article
What is the closest planet to the Sun?. The closest planet to the Sun is Mercury. Mercury circles the Sun in 88 days, this is the shortest time... View Article
