An oscilloscope measures the

Electrons in an oscilloscope are deflected by two mutually perpendicular oscillating electric field such that at any time the displacement due to them are given by x=Acosomegat , y=Asin(omegat+pi/6) . Then the path of the electron is

An oscilloscope is an instrument which allows us to see waves produced by

The diagram shows three waves X, Y and Z displayed on the screen of the oscilloscope connected to a microphone when three different sounds are made in front of the microphone. Which of the following statements is correct regarding different sounds?

Which scale measures the intensity of earthquake measured ?

Measurement

The distance between the two plates of a cathode-ray oscilloscope is 1 cm and the potential difference between them is 1200 V. If an electron of energy 2000 eV enters at right angles to the field, what will be its deflection if the plate be 1.5 cm long.

The distance between the two plates of a cathode-ray oscilloscope is 1 cm and the potential difference between them is 1200 V. If an electron of energy 2000 eV enters at right angles to the field, what will be its deflection if the plate be 1.5 cm long.

In isosceles triangleABC, one angle measure 55^(@) and another angle measure 70^(@) . Which one of the following is the measure of the third angle?