False it refers to frequency
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Answer: analog-to-digital
Explanation: Analog-to-digital converters as the name implies simply refers to components which are used to convert continuous analog signals into a discrete analog outputs so they it can be read and processed by a microprocessor. The microprocessors are unable to depict and read analog signals which could be gathered from sound, light or water wave sources. This wave sources are then sampled, processed and sorted into levels by the analog-to-digital converter before being sent to the microprocessor so that the waves can be read.
When you look vertically downwards into a swimming pool full of water the bottom of the pool seems closer to you than it really is. The apparent depth at this point can be worked out using the formula:
Apparent depth = Real depth/Refractive index of water
However as you look towards the end of the pool the bottom seems to curve upwards – we are thinking about a pool of constant depth to start with.
If the depth of the pool really does change then the situation becomes more complex and you would need to allow for that when drawing the diagram
Answer:
option B is correct
factor is 0.0625
Explanation:
Given data
camera lens = 4X
to find out
find factor
solution
we know Inverse square law that is the intensity is inversely proportional to the square of the distance from the source i.e f
so we say intensity ( I ) ∝ 1 / f
so I1 / I2 = f2² / f1²
so I2 will be
I2 = f2² / f1² × I1
I2 = 1 / 4² × I1
I2 = 0.0625
so option B is correct
factor is 0.0625
