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What are the differences between real image and virtual image?

1. What are the differences between real image and virtual image?. 2. What happens to a ray of light when it travels from a rarer medium to a denser medium?. 3. What are the characteristics of image formed by a plane mirror?. 4.

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What are the differences between real image and virtual image?

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  1. 1. What are the differences between real image and virtual image?

  2. 2. What happens to a ray of light when it travels from a rarer medium to a denser medium?

  3. 3. What are the characteristics of image formed by a plane mirror?

  4. 4. The phenomenon by which the incident light falling on a surface is sent back into the same medium is known as ________. a)Polarization b)Reflection c)Refraction d)absorption

  5. 5. •  According to the laws of reflection, • a) θi = θr • b) θi > θr • c) θr > θi • d) θi ≠ θr

  6. 6. • The focal point of a concave mirror is________. • a)real • b)virtual • c)undefined • d)at the pole

  7. 7. • A converging mirror is known as________. a)convex mirror b)plane mirror c)concave mirror d)cylindrical mirror

  8. 8. • An image formed by a convex mirror is always ________. a)virtual, erect and diminished b)virtual, erect and magnified c)real, inverted and diminished d)real, erect and magnified

  9. 9. •   What is the angle between the incident and reflected rays when a ray of light is incident normally on a plane mirror? a)90o b)45o c)180o d)0

  10. 10. • The focal length of a concave mirror is 15 cm. What is its radius of curvature? a)15 cm b)30 cm c)7.5 cm d)45 cm

  11. 11. •  When an object is placed at the focus of a concave mirror, the image will be formed at ________. a)infinity b)focus c)centre of curvature d)pole

  12. 12. •  A reflection of a surface that is not smooth is called a   a)   diffuse reflection   b)  sharp reflection   c)  total internal reflection

  13. 13. • The perpendicular to where light hits a substance is called   a)  the index of reflection  b)   the angle of refraction  c)  the normal

  14. 14. • Suppose you stand 1.6 m in front of a plane mirror. How far away from you is your image? a. 1.6 m. b. 0 m. c. 1 m. d. 3.2 m. e. 4 m.

  15. 15. • Question: The part of the lens through which the ray of light passes without suffering deviation is called ________. • 1. center of the lens • 2. focus • 3. center of curvature • 4. pole

  16. 16. • Convex lens always gives a real image if the object is situated beyond _______. • 1. center of the lens • 2. center of curvature • 3. focus • 4. radius of curvature

  17. An object is placed 12 cm from a convex lens whose focal length is 10 cm. The image must be. • 1. virtual and enlarged • 2. virtual and reduced in size • 3. real and reduced in size • 4. real and enlarged

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