Which of the following characteristics of a wave is used ...
Which of the following characteristics of a wave is used in the measurement of the depth of the Sea?
diffraction
interference
refraction
reflection
Correct answer is D
Depth of sea can be measured by echo, a reflected sound waves.
Which of the following statements are correct? i. land and sea breezes are natural convection cur...
A satellite is in a parking orbit if its period is ...
Which of the following is/are not correct about isotopes of an element? The have ...
In which of the following is the expansion of solids a disadvantage? ...
In an a.c circuit that contains only a capacitor, the voltage lags behind the current by ...