Tell me Ceres sentence
Answers
Answer:
CERES, an old Italian goddess of agriculture. The rites of Ceres were Greek in language and form. I was to be Ceres in a kind of masque given by the blind girls. ...
Explanation:
hope it will help you if not so sorry
Answer:
Given :-
Focal length = -20 cm
Image Distance = -30 cm
Image height = -10 cm
To Find :-
Location
Nature
Solution :-
According to mirror formula
\sf \: \dfrac{1}{v} + \dfrac{1}{u} = \dfrac{1}{f}
v
1
+
u
1
=
f
1
V = Image Distance
U = Object Distance
F = Focal length
1/-30 + 1/u = 1/-20
-1/30 + 1/u = -1/20
1/u = -1/20 - -1/30
1/u = -1/20 + 1/30
1/u = -3 + 2/60
1/u = -1/60
u = 60 × -1
u = -60 cm
Now,
Magnification
\sf \dfrac{hi}{ho} = \dfrac{ - v}{u}
ho
hi
=
u
−v
-10/ho = -30/60
-10/ho = -3/6
-10/ho = -1/2
ho = 2 × 10
ho = 20 cm
Conclusion :-
Object Distance = -60 cm
Object Height = 20 cm
Nature = Real and Inverted