With the use of Mirror formula, find f, when u and v are same i.e. 20 cm, what will be the value of f in concave mirror
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Answered by
1
Answer:
f = 10
Explanation:
It is an equation relating object distance and image distance with focal length is known as a mirror equation. It is also known as a mirror formula. In a spherical mirror: ... The distance between the Principal focus and pole of the mirror is called Focal Length(f).
mirrors formula ⇒ 1/f = 1/u +1/v
f = ? , u = v = 20
in concave mirror -1/f = -1/u -1/v ∵f,u,v are -ve in concave mirror
∴ -1/f = -1/20-1/20
f = 10
Answered by
2
Answer:
When an object is placed 20 cm from a concave mirror a real image magnified three times is formed. When an object is placed 20 cm from a concave mirror, a real image magnified three times is formed.
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