Answer : <em> The period increases and the frequency decreases</em>.
Explanation :
Gamma rays are the rays having frequency(
) greater than
and frequency of microwave lie between 300 MHz to 300 GHz.
Since, 
So, as we move from gamma rays to microwaves the energy increases because frequency is increasing.
Also, Time period 
We can say that as the time period increases, frequency decreases.
Answer:
Multiply the length, width and height of the brick to calculate its volume.
Explanation:
Explanation:
Given that,
Radius of the coil, r = 4.2 cm
Number of turns in the coil, N = 500
The magnetic field as a function of time is given by :

Resistance of the coil, R = 640 ohms
We need to find the magnitude of induced emf in the coil as a function of time. It is given by :

Hence, this is the required solution.
Answer:
Volume.
Explanation:
Boyle’s law experiment :
This is also known as Mariotte's law or in the other words it is also known as Boyle–Mariotte law.
This law tell us about the variation of gas pressure when the volume of the gas changes at the constant temperature.According to this law the abslute pressure is inversely proportional to the volume .
We can say that

Where P=Pressure
V=Volume
PV = K
K=Constant
When volume decrease then the pressure of the gas will increase.
That is why the answer is "Volume".