Explanation:
It is given that,
The wavelength of red helium–neon laser light in air is,
(a) Frequency,
(b) Let shows its wavelength in glass that has an index of refraction of 1.51,
(c) Let is its speed in the glass.
Hence, this is the required solution.
Explanation:
The difference between a seismograph and a Seismogram is that:
a Seismograph is referred to a tool or instrument used in measuring the magnitude or effect of an earth quake
While
Seismogram is a type of output report or data that is generated out of a seismograph.
So in summary, a Seismograph is an instrument or tool while Seismogram is an output data generated from the usage of a seismograph.
the greater the <u>mass</u> of an object the more force is needed to cause acceleration
Answer: 1A
Explanation: for an ideal transformer, the relationship between number of turns and current is given below as
Ip/ Is = Ns/ Np
Where Ip = current in primary loop = 3A
Is = current in secondary loop =?
Np = number of turns in primary loop = n
Ns = number of turns in secondary loop = 3n
By substituting the parameters, we have that
3/Is = 3n/n
3/Is = 3
3 = 3 × Is
Is = 3/3 = 1A
Current in the secondary loop is 1A