A progressive wave has a wavelength of 50cm. calculate th...
A progressive wave has a wavelength of 50cm. calculate the phase difference between two points at a distance of 20cm apart.
10/3π
5/2 π
4/5 π
2/3 π
π/3
Correct answer is C
Phase difference = \(\frac{2\pi x}{\lambda}\)
= \(\frac{2\pi \times 20}{50}\)
= \(\frac{4}{5} \pi\)
The amount of heat needed to raise the temperature of 10kg of copper by 1k is its ...
A gas which obeys Charles’ law exactly has a volume of 283cm3 at 10oC. What is its volume at 3...
An electric device is rated 2000W, 250V. Calculate the maximum current it can take ...
When the volume of a given mass of gas is halved and its temperature doubled, the pressure ...
An astronomical telescope is said to be in normal adjustment when the ...