Science, asked by sonumohanty1, 9 months ago

An object is placed 20 cm from the concave mirror of focal length 10 cm, then image formed at
A.Behind the mirror
B.Between the mirror and focus.
C.At focus
D.Centre of curvature of mirror.

Answers

Answered by Anonymous

FOCAL LENGTH ( F ) = - 10cm

OBJECT DISTANCE ( u ) = - 20cm

FORMATION OF IMAGE

ITS GIVEN THAT THE FOCAL LENGTH IS - 10cm

NOW,

FINDING CENTER OF CURVATURE (R)

F = R/2

- 10 = R/2

R = -20 cm -------EQ 1

FROM EQUATION 1 WE GOT THAT OBJECT IS PLACED AT CENTER OF CURVATURE

HENCE THAT IMAGE WILL ALSO FORM AT CENTER OF CURVATURE

THEREFORE,

OPTION (D) IS CORRECT

Answered by khushwanthkk15

Answer: option D

Explanation:

HEY MATE YOUR ANSWER IS HERE

★ GIVEN ★

FOCAL LENGTH ( F ) = - 10cm

OBJECT DISTANCE ( u ) = - 20cm

★ TO FIND ★

FORMATION OF IMAGE

★ SOLUTION ★

ITS GIVEN THAT THE FOCAL LENGTH IS - 10cm

NOW,

FINDING CENTER OF CURVATURE (R)

F = R/2

- 10 = R/2

R = -20 cm -------EQ 1

FROM EQUATION 1 WE GOT THAT OBJECT IS PLACED AT CENTER OF CURVATURE

HENCE THAT IMAGE WILL ALSO FORM AT CENTER OF CURVATURE

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