Answer:
The alkaline earth metals (beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. somewhat reactive metals at standard temperature and pressure.
Decrease the work being done and decrease the time in which the work is to be completed.
Answer:
Option B
Explanation:
As we know
Frequency (F) * wavelength (W) = C (speed of light - can also be taken as constant)
Hence,
Or
Substituting the given values, we get -
m
Hence, option B is correct
Answer:
Charge
Explanation:
Unit of ampere is defined as the coulomb of charge per unit time which is in seconds.
Here, i is in ampere, qis the charge which is in coulomb, and the t is in sec which is time.
Therefore,
Charge=ampere-second.
Therefore, the unit ampere-second will represent the charge.