Answer:
2 different types of precipitation is rain and snow.
Explanation:
The clouds will form... and the droplets that could be coming out is rain and snow.
Answer:
b) R/4 (There seems to an error in mentioning the multiple choices of this question, please see below explanation of correct calculations for this question.)
Explanation:
dimension of the conductor before melting is l, r
reistivity is p
R=(p*l)/(pie*r2)
after reforming length is reduced to L=l/4
volume in both the cases will be same
i.e. pie * r^2 * l =pie * R^2 * L
r^2 * l = R^2 * (1/2)l
due to this radius will become R=sqrt(2) * r
now new reistance is given by Rx=(p * L)/(pie * R^2)
i.e. Rx=(p * l/2)/(pie * r^2 * 2)
after simplification RX=((p * l)/(pie * r^2))/4
i.e. Rx=R/4
Answer:
Electric Field a the centre
Explanation:
<u>Given:</u>
Total charge on the semicircle =Q
Radius of the semicircle=R
Let consider a elemental charge on the semicircle at an angle 
with the horizontal. Since the The charge distribution is symmetrical about y axis so the there will symmetrical charge on other side. The horizontal component will cancel out each other and vertical component will get added so let dE be the electric Field due to elemental charge
Let 
be the charge per unit length such that
Total Electric Field at the centre
integrating 0 to 
So the Electric field at the centre is calculated.
Answer:
The focal length is 15.549 cm
The power of the lens is 0.0643 D
Solution:
As per the question:
The near point is 50.0 cm
Distance of the glasses from the eyeball, d = 2.00 cm
The near point of a normal human eye is 25 cm
Now,
The image distance, v' = 50.0 - 2.00 = 48.0 cm
The object distance, u' = 25.0 - 2.00 = 23.0 cm
Now, using the Lens maker formula to calculate the focal length:
f = 15.549 cm
Now, the power of the lens in diopters is given by:
