In the following diagram, what is the distance x if the radius of curvature is R = 15 cm?

1. 30 cm

2. 20 cm

3. 15 cm

4. 10 cm

Subtopic:  Refraction at Curved Surface |
78%
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The slab of a refractive index material equal to 2 shown in the figure has a curved surface APB of a radius of curvature of 10 cm and a plane surface CD. On the left of APB is air and on the right of CD is water with refractive indices as given in the figure. An object O is placed at a distance of 15 cm from pole P as shown. The distance of the final image of O from P as viewed from the left is:

 1 20 cm 2 30 cm 3 40 cm 4 50 cm
Subtopic:  Refraction at Curved Surface |
61%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

A glass sphere $\left(\mu =\frac{3}{2}\right)$ of radius 12 cm has a small mark at a distance of 3 cm from its centre. Where will this mark appear when it is viewed from the side nearest to the mark along the line joining the centre and the mark?

 1 8 cm inside the sphere 2 12 cm inside the sphere 3 4 cm inside the sphere 4 3 cm inside the sphere
Subtopic:  Refraction at Curved Surface |
53%
From NCERT
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In a glass ($\mu$ = 1.5) sphere with a radius of 10 cm, there is an air bubble B at a distance of 5 cm from C. The distance of the bubble from the surface of the sphere (i.e., point A) as observed from point P in the air will be:

 1 4.5 cm 2 20.0cm 3 9.37 cm 4 6.67 cm
Subtopic:  Refraction at Curved Surface |
57%
From NCERT
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

A mark on the surface of sphere (µ = 3/2) is viewed from a diametrically opposite position. It appears to be at a distance $$15~\mathrm{cm}$$ from its actual position. The radius of sphere is:
1. 15 cm
2. 5 cm
3. 7.5 cm
4. 2.5 cm

Subtopic:  Refraction at Curved Surface |
53%
From NCERT
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