Answer:
Magnification, m = -0.42
Explanation:
It is given that,
Height of diamond ring, h = 1.5 cm
Object distance, u = -20 cm
Radius of curvature of concave mirror, R = 30 cm
Focal length of mirror, f = R/2 = -15 cm (focal length is negative for concave mirror)
Using mirror's formula :
, f = focal length of the mirror


v = -8.57 cm
The magnification of a mirror is given by,


m = -0.42
So, the magnification of the concave mirror is 0.42. Thew negative sign shows that the image is inverted.
Explanation:
Formula to represent thrust is as follows.
F = 
= 
or, p = 

F = 
= 
= 201.67 N
Thus, we can conclude that the thrust is 201.67 N.
Answer:
friction, conduction and induction
Explanation:
Had it in class I had it correct hope this helps.
Answer:
D. An image that is smaller than the object and is behind the mirror