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Ray Optics and Optical Instruments

Reflection of Light by Spherical Mirrors

In an experiment to determine the focal length ( f ) of a conc

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Solving time: 3 mins

In an experiment to determine the focal length ( $f$ ) of a concave mirror by the u-v method, a student places the object pin A on the principal axis at a distance $x$ from the pole $P$ . The student looks at the pin and its inverted image from a distance keeping his/her eye in line with PA. When the student shifts his/her eye towards left, the image appears to the right of the object pin. Then :

x < f

f < x < 2 f

x = 2 f

x > 2 f

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Updated on: May 30, 2023

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Michael Discussed

In an experiment to determine the focal length (

f

) of a concave mirror by the u-v method, a student places the object pin A on the principal axis at a distance

x

from the pole

P

. The student looks at the pin and its inverted image from a distance keeping his/her eye in line with PA. When the student shifts his/her eye towards left, the image appears to the right of the object pin. Then :

10 mins ago

Discuss this question LIVE

10 mins ago

Text solutionVerified

Since the object and the image move in opposite directions, the position of the object should be in between

f

and

2 f

.
So,

f < x < 2 f

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Question Text	In an experiment to determine the focal length ( $f$ ) of a concave mirror by the u-v method, a student places the object pin A on the principal axis at a distance $x$ from the pole $P$ . The student looks at the pin and its inverted image from a distance keeping his/her eye in line with PA. When the student shifts his/her eye towards left, the image appears to the right of the object pin. Then :
Updated On	May 30, 2023
Topic	Ray Optics and Optical Instruments
Subject	Physics
Class	Class 12
Answer Type	Text solution:1 Video solution: 3
Upvotes	467
Avg. Video Duration	18 min

Text solutionVerified

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