### REFRACTION OF LIGHT AT CURVED SURFACES

1.

What can you understand from the above ray diagram? (AS4) 1Mark
A:
A Paralled beam of light rays when incident on a convex lens converge at focus after refraction.

2.

What information does the above figure gives us? (AS4) 1mark

A: A Paralled beam of light rays incident on a concave lens appears to emerge from a point on principal axis

3.

Correct the above ray diagram and draw the corrected one. (AS5) 1 Mark
A:

4.

Identify F1, C1, F2 and C2 (AS5) 1 Mark
A:

5.

Correct the mistake and draw the correct ray diagram (AS5) 1 Mark
A:

6.

Complete the ray diagram (AS5) 1 Mark
A:

7.

Correct the mistake and redraw the correct diagram (AS5) 2 Marks
A:

8.

Complete the ray diagram (AS5) 1 Mark
A:

9.

Correct the mistake and redraw the diagram (AS5) 1 Mark
A:

10.

Complete the given figure and Identify the position of the image .
(AS5) 2 Marks
A:

11.

Complete the given figure and locate the position of the image. (AS5) 2 Marks
A:

The image forms in between F1 and C1

12.

Complete the ray diagram and identify the nature of the image. (AS5) 2 Marks
A:

Real, inverted image which is equal to the size of the object.

13.

Complete the ray diagram and locate the Position of the image (AS5) 2 Marks
A:

14. What does the figure convey? (AS4)1 Mark

A:
A ray travelling parallel to the principle axis strikes a convex surface and passes from a rarer medium to Denser medium.

15. What does the figure show? (AS4) 1 Mark

A:
A ray travelling parallel to the priciple axis strikes a convex surface and passes from a denser medium to rarer medium.

16. What information does the figure give us? (AS4) 1 Mark

A:
A ray travelling parallel to the principle axis strikes a concave surface and passes from a denser medium to rarer medium.

17. What information does the figure give us? (AS4) 1Mark

A:
A ray travelling parallel to the principle axis strikes a concave surface and passes from a rarer medium to denser medium.

18. Draw the ray diagram for a concave lens when the object is placed between c and f. (AS5) 2 Marks
A:

19.

Complete the figure and describe the characteristics of image. (AS5) 2 Marks
A:

A Virtual, erected and diminished image is formed.

20. Draw the ray diagram to show the behaviour of light rays when they are incident on a lens. (AS5) 4 Marks
A:
i) Ray passing along the principle axis

ii) Ray passing through the optic centre.

iii) rays travelling parallel to the principal axis

iv) Ray passing thorugh focus

21. Draw the ray diagrams to represent the formation of images by a convex lens when the object is kept at various positions on a principal axis
(AS5) 4 Marks
A: i) Object at infinity

ii) Object placed beyond the centre of curvature on the principal axis

iii) Object placed at the centre of curvature

iv) Object placed between the centre of curvature and focal point

v) Object located at the focal point

vi) Object placed between focal point and optic centre

22.

Draw the ray diagrams for a convex lens satisfying the above conditions.
(AS5) 4 Marks
A:

23.

Draw the ray diagrams satisfying the above conditions for a convex lens.
(AS5) 4 Marks

A:

Posted Date : 16-11-2020

గమనిక : ప్రతిభ.ఈనాడు.నెట్‌లో కనిపించే వ్యాపార ప్రకటనలు వివిధ దేశాల్లోని వ్యాపారులు, సంస్థల నుంచి వస్తాయి. మరి కొన్ని ప్రకటనలు పాఠకుల అభిరుచి మేరకు కృత్రిమ మేధస్సు సాంకేతికత సాయంతో ప్రదర్శితమవుతుంటాయి. ఆ ప్రకటనల్లోని ఉత్పత్తులను లేదా సేవలను పాఠకులు స్వయంగా విచారించుకొని, జాగ్రత్తగా పరిశీలించి కొనుక్కోవాలి లేదా వినియోగించుకోవాలి. వాటి నాణ్యత లేదా లోపాలతో ఈనాడు యాజమాన్యానికి ఎలాంటి సంబంధం లేదు. ఈ విషయంలో ఉత్తర ప్రత్యుత్తరాలకు, ఈ-మెయిల్స్ కి, ఇంకా ఇతర రూపాల్లో సమాచార మార్పిడికి తావు లేదు. ఫిర్యాదులు స్వీకరించడం కుదరదు. పాఠకులు గమనించి, సహకరించాలని మనవి.