A rubber bullet of mass m is fired from a rifle into a stationary block of 25 m. The bullet remains in the block and both the bu
1 answer:
You might be interested in
Answer: Option (b) is the correct answer.
Explanation:
According to ohm's law, the relationship between voltage, resistance, and current is that current passing through a conductor is directly proportional to the voltage over resistance.
Mathematically, I =
From this relationship we can see that when we decrease the voltage, and do not change the resistance, the current will also decrease. As current is directly proportional to voltage and inversely proportional to resistance.
The velocity of the wave on the string is given by
Solving the above equation,
The frequency of the wave and wave length is
The velocity is
Substituting numerical values,
The length of the string is