Start learning 50% faster. Sign in now
The correct answer is B
Ultrasonic pulse echo technique, a non-destructive ultrasonic testing, is employed for any possible flaw detection in a metallic bar of thickness 30 cm...
Which of the following is not an insulator?
When a forward bias is applied to a p-n junction, it
When an electric current flows, electrons move from:
Which of the following is NOT a conductor of electricity?
Which law explains why it is difficult to hammer a nail into a freely suspended wooden frame?
A plane electromagnetic wave travels in vacuum along the z-direction. If the frequency of the wave is 20 MHz, what is its wavelength?
The Mohs scale is used to measure:
What is found in frequency modulation?
Which of the following is not a recognized type of inertia?