Question :
If a body acquires a charge of -0.02 C, has it gained or lost electrons? Many?
Solution :
We know, charge gained is shown by negative sign.
Since, charged acquired is given as -0.02 C .
Therefore, it is body has gained electrons.
Now, number of electrons is given by :
Hence, this is the required solution.
Answer:
Meter, Gram and Liter.
Explanation:
In the metric system, the standard units for the below are;
Length - Meter
Mass - Gram
Volume - Liter.
X-ray)
because Electromagnetic waves are in act
Equal to 50
law of reflection: angle of incidence equals angle of reflection
External = R
Internal = r
Volume of hemisperical = 2/3 π(R³-r³)
V= 2/3 π(9.1³ - 8.4³)
V= 336.9 cm³
