Answer:
shadow length 7.67 cm
Explanation:
given data:
refractive index of water is 1.33
by snell's law we have


solving for



from shadow- stick traingle


s = 19tan22 = 7.67 cm
s = shadow length
Objects dropped straight or thrown horizontally from the same height
change their vertical velocity at the same rate, and fall through equal
vertical distances in equal time intervals.
The statement is false.
I think it may be c i learned about this last year
<span>ripple factor can be reduced by increasing the value of the load resistor (which means reducing the load of the circuit)</span>
<h3>Reducing Surface Area.</h3>
If the surface area becomes smaller, the pressure becomes larger.