From a point source a light falls on a spherical glass surface (`mu = 1.5` and radius of curvature `= 10 cm`). The distance between point source and g

Question

From a point source a light falls on a spherical glass surface (`mu = 1.5` and radius of curvature `= 10 cm`). The distance between point source and g

From a point source a light falls on a spherical glass surface (`mu = 1.5` and radius of curvature `= 10 cm`). The distance between point source and glass surface is `50 cm`. The position of image is
A. `25 cm`
B. `50 cm`
C. `100 cm`
D. `150 cm`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
Using, ` (mu_(2))/(v) - (mu_(1))/(u) = (mu_(2) - mu_(1))/(R)`
Here, `mu_(1) = 1, mu_(2) = 1.5, u = -50 cm`
`:. (1.5)/(v) = - (1)/((-50)) = ((1.5-1))/(10) , (1.5)/(v) = 0.05 - 0.02 = 0.03`
`rArr v = 50 cm`

5 views Answered 2023-02-05 15:29