Physics Past Questions and Answers

The distance between two successive create called ____________

The velocity of sound in a medium 320m/s. if the sound is propagated with a frequency 80Hz, what is its wave length?

an image which can be formed on a screen is said to be ____________

which of the following is of a colour in white light?

The magnification of a lens is 4. If the height of an object.
what is the height of image?