An object of 6cm height is placed at a distance of 30cm in front of a convex mirror of focal length 20cm. Find the position,nature and size of the object.
Answers
Answered by
0
Answer:
Explanation:
u = -30 cm
f = -15 cm
1
f
=
1
u
+
1
v
=>
1
v
=
1
f
−
1
u
=>
1
v
=
1
−
15
−
1
−
30
=
−
1
15
+
1
30
=
−
2
+
1
30
=>
1
v
=
−
1
30
=>
v
=
−
30
c
m
.
m
=
−
v
u
=
−
−
30
−
30
=
−
1
therefore ,
The image is real , inverted and of same size as that of object
Answered by
0
Answer:u = -30 cm
f = -15 cm
1 f =1 u + 1 v
=> 1 v = 1 f − 1 u
=> 1 v = 1 − 15− 1 − 30 = − 1 15 + 1 30
= − 2+ 1 30
=> 1v =− 1 30
=> v=− 30 c m
.
m = − v u = − 30 − 30 =− 1
therefore ,
The image is real , inverted and of same size as that of object
Explanation:
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