Which state has the country’s first Graphene Innovation Centre?
the Kerala government announced that the country’s first Graphene Innovation Centre would come up in Thrissur, Kerala
Which of the following statement is true for a wavelength of 1000 nm. A p-n photodiode is fabricated from a semiconductor with band gap of 1.9 eV.
In order to use the transistor as an amplifier, it has to operate in the____ region
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...
Which of the following optical phenomena CANNOT convert unpolarised light to plane polarised light?
A decibel is –
Ultrasonic pulse echo technique, a non-destructive ultrasonic testing, is employed for any possible flaw detection in a metallic bar of thickness 30 cm...
A pond of water appears less deep due to –
A spherical ball made of steel when dropped in mercury container will –
In a plane electromagnetic wave. the electric field oscillates sinusoid ally at a frequency of 3 × 108 Hz and amplitude 36 V/m. Find the am...