Which of the following options is a device that is used for converting one form of energy into another?

types of wave has these characteristics? i) The wave travels in a straight line from transmitting antenna to the receiving antenna. ii) It is used for line-of-sight communication.

What is the bandwidth of video signal required for the transmission of pictures?

What is the correct value of the wavelength of the fourth spectral line (£51) in the Lyman series of the hydrogen spectrum?

If 0.8m is the distance between the two insulated charged spheres of charges 8.5 x10‘7 C each, then what is the force when the charges are doubled and the distance of separation among them is halved?

In a Young's experiment, 3 mm is the width of the fringes obtained with light having a wavelength of 9000 A. If the entire apparatus is immersed in a liquid of refractive index 1.33, then what is the fringe width?

When steam condenses into water, __________.

Very small organisms, like paramecia or protozoa, moving around in water __________.

The ________ respects the new conductor.

Restless tectonic plates move (shift) between one and fifteen centimeters per __________.

Stern observed all of the following results except _______ in his experiment.