The exposure index EI for a 35 millimeter camera is a measurement of the amount of light that hits the film. It is determined by the equation EI = log

EI = 7

Step-by-step explanation:

The exposure index formula given is:

Where

f is the f-stop setting

t is the exposure time in seconds

Given, the

f-stop setting = 16

t = 2 seconds

We substitute and use log calculator to find our EI, exposure index:

step-by-step explanation:

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b