Draw ray diagrams for the cases of images obtained in concave mirrors as described in the table given below. Si No Position of the object Position of the image 1 Between pole and focus Behind the mirror 2 At the focus At infinity 3 Between focus and centre of curvature Beyond the centre of curvature 4 At the centre of curvature At the centre of curvature 5 Beyond the centre of curvature Between the centre of curvature and focus 6 At a very large(infinite) distance At focus

1. When the object is between the pole and the focus. Position of Image - behind the mirror Nature of Image - erect and virtual Size of Image - magnified. The ray diagram is traced by considering two rays. 2. When the object is at focus. Position of Image - at infinity Nature of Image - real and inverted Size of Image - very large 3. When the object is between focus and centre of curvature. Position of Image - beyond the centre of curvature Nature of Image - inverted and real Size of Image - magnified. 4. When the object is at centre of curvature. Position of Image - at centre of curvature Nature of Image - inverted and real Size of Image - same size as the object 5. When the object is beyond the centre of curvature. Position of Image - between centre of curvature and focus Nature of Image - inverted and real Size of Image - diminished 6. When the object is at very large distance (Infinity). Position of Image - at focus Nature of Image - inverted and real Size of Image - point size

E M B I B E

Science and Technology Standard Nine>Chapter 11 - Reflection of Light>Exercise>Q 1

EASY

9th Maharashtra Board

IMPORTANT

Earn 100

Describe the positions of the source of light with respect to a concave mirror in
1. Torchlight
2. Projector lamp
3. Floodlight

Important Questions on Reflection of Light

EASY

9th Maharashtra Board

IMPORTANT

Science and Technology Standard Nine>Chapter 11 - Reflection of Light>Exercise>Q 1

Why are concave mirrors used in solar devices?

EASY

9th Maharashtra Board

IMPORTANT

Science and Technology Standard Nine>Chapter 11 - Reflection of Light>Exercise>Q 1

Why are the mirrors fitted on the outside of cars convex?

EASY

9th Maharashtra Board

IMPORTANT

Science and Technology Standard Nine>Chapter 11 - Reflection of Light>Exercise>Q 1

Why does obtaining the image of the sun on a paper with the help of a concave mirror burn the paper?

EASY

9th Maharashtra Board

IMPORTANT

Science and Technology Standard Nine>Chapter 11 - Reflection of Light>Exercise>Q 1

If a spherical mirror breaks, what type of mirrors are the individual pieces?

MEDIUM

9th Maharashtra Board

IMPORTANT

Science and Technology Standard Nine>Chapter 11 - Reflection of Light>Exercise>Q 2

What sign conventions are used for reflection from a spherical mirror?

HARD

9th Maharashtra Board

IMPORTANT

Science and Technology Standard Nine>Chapter 11 - Reflection of Light>Exercise>Q 3

Draw ray diagrams for the cases of images obtained in concave mirrors as described in the table given below.

Si No	Position of the object	Position of the image
1	Between pole and focus	Behind the mirror
2	At the focus	At infinity
3	Between focus and centre of curvature	Beyond the centre of curvature
4	At the centre of curvature	At the centre of curvature
5	Beyond the centre of curvature	Between the centre of curvature and focus
6	At a very large(infinite) distance	At focus