A paper is folded and cut as shown below. How will it

The instrument which uses sound waves to measure the depth of oceans is –

In which material does sound travel the fastest?

What conditions must be met for stationary waves to form?

Cell was discovered by

According to Maxwell’s right-hand thumb rule, the direction of magnetic field lines around a current-carrying wire is indicated by the:

Which pioneer of the late 19th century is credited with using radio waves for signal transmission over several kilometers?

Which function is performed by rectifiers?

If input frequency of a full wave rectifier be n, then output frequency would be-

Which Metal is found in the highest proportion in earth’s crust?

Which of the following wind is also known as “ICE HEATER?”