Physics
A sound wave travelling in water has wavelength 0.4 m. Is this wave audible in air? (The speed of sound in water = 1400 ms-1).
Related Questions
The wave lengths for the light of red and blue colours are nearly 7.8 x 10-7 m and 4.8 x 10-7 m respectively.
(i) Which colour has the greater speed in a vacuum?
(ii) Which colour has a greater speed in glass?
Why is it not advisable to use a piece of copper wire as fuse wire in an electric circuit?
Why does stone lying in the sun get heated up much more than water lying for the same duration of time?
Draw a graph between displacement from mean position and time for a body executing free vibration in a vacuum.