A string is stretched between two points 50cm apart. It i...
A string is stretched between two points 50cm apart. It is then plucked at its center and the velocity of the wave produced is 300m/s. Calculate the number of vibrations made by the string in 1s.
3
6
150
300
600
Correct answer is D
λ = 2 x 50 = 100cm = 1m.
V = fλ, f = v/λ = 300.
The intensity of light falling on the film in a camera depend on the i. brightness of the object....
What is the average velocity of the sprinter whose velocity time graph is as shown above ...
The electrolyte in the Nickei-iron (Nife) accumulator is ...
Which of the following defects of vision is as a result of the eye ball being too long? ...
The time rate of loss of heat by a body is proportional to the ...