Answer
Correct answer is amplitude
Explanation:
Frequency: frequency is the number of complete waves which passes through a point in one second. SI unit of frequency is Hertz (Hz). Frequency depends on Wavelength. Frequency is inversely proportional to wavelength. It means if wavelength of wave is higher, then its frequency will be shorter.
Wavelength: wavelength is the distance between adjacent crests. SI unit of wavelength is meters. Wavelength depends on frequency. Wavelength is inversely proportional to frequency, it means if frequency of wave is higher, then its wavelength will be shorter.
Speed : Speed of wave is defined as the speed with which a wave propagate in a medium or vacuum. SI unit of speed is m/s. Wave speed depends on wavelength and frequency by following equation
Amplitude: Amplitude is the height of the wave. SI unit of amplitude is meter. Amplitude is independent of frequency, wavelength and speed. So it is correct answer
Answer:
The magnitude of electric field is 22.58 N/C
Solution:
Given:
Force exerted in upward direction,
Charge, Q =
Now, we know by Coulomb's law,
Also,
Electric field,
Thus from these two relations, we can deduce:
F = QE
Therefore, in the question:
Here, the negative side is indicative of the Electric field acting in the opposite direction, i.e., downward direction.
The magnitude of the electric field is:
The time taken to complete her run is 1.9 hr.
<u>Explanation:</u>
Speed is a scalar quantity and it is defined as the ratio of distance covered to the time taken to cover that distance. As distance is also a scalar quantity, so the directions given in the problem can be ignored. Thus, the distance covered by the jogger is the sum of kilometers given in problem.
Distance covered = 6+5+4 = 15 km
And the speed is given as 8 km/hr.
So the time taken will be ratio of distance to speed.
So the jogger will take 1.9 hr to complete her run.
Answer : The maximum concentration of silver ion is
Solution : Given,
for AgBr =
Concentration of NaBr solution = 0.1 m
The equilibrium reaction for NaBr solution is,
The concentration of NaBr solution is 0.1 m that means,
The equilibrium reaction for AgBr is,
At equilibrium s s
The expression for solubility product constant for AgBr is,
The concentration of = s
The concentration of = 0.1 + s
Now put all the given values in expression, we get
By rearranging the terms, we get the value of 's'
Therefore, the maximum concentration of silver ion is .
g Generally the accepted value of acceleration due to gravity is 9.801
as per the question the acceleration due to gravity is found to be 9.42 in an experiment performed.
the difference between the ideal and observed value is 0.381.
hence the error is -
=3.88735 percent
the error is not so high,so it can be accepted.
now we have to know why this occurs-the equation of time period of the simple pendulum is give as-
As the experiment is done under air resistance,so it will affect to the time period.hence the time period will be more which in turn decreases the value of g.
if this experiment is done in a environment of zero air resistance,we will get the value of g which must be approximately equal to 9.801