Answer:
Explanation:
The speed is a derived quantity as it being derived from a defined set of quantities through a formula. There are only 7 fundamental quantities which are being defined with their individual fundamental units. Of those, length and time are two of them.Thus, it is a derived quantity
One type is microwaves
Microwaves are used for radio and radar communications
Also used to cook food
Answer:
The values is 
Explanation:
From the question we are told that
The slit distance is 
The wavelength is 
At the first half of the screen from the central maxima
The number of bright spot according to the condition for constructive interference is

For maximum number of spot 
So


Now for the both sides plus the central maxima we have

substituting values


No because the path the electricity needs to follow is broken. In parallel circuit,electricity has more that one path to follow.
C. Frequency is a measure of how many waves pass by in one second.