Answer:
Answer B
Explanation:
An increase in resistance makes it harder for the electric current to pass through
<h3>WATER</h3>
Explanation:
<h2>#CARRYINGTOLEARN:)</h2>
Air caught in the ball of foil makes the ball less dense than water
Answer:
Magnification will be equal to 3
Explanation:
We have given focal length of the converging lens 
Focal length of the diverging lens 
Object is placed 40 cm to the length of the converging lens d = 40 cm
Combination of the focal length will be equal to


F = 60 cm
So combination of the focal length will be 60 cm
Magnification is given by

So magnification will be equal to 3