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Name the part of a lens through which a ...

Name the part of a lens through which a ray of light passes without suffering any deviation.

A

optical centre

B

focus

C

centre of curvature

D

pole

Text Solution

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The correct Answer is:
A
optical centre
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AGRAWAL EXAM CART BIHAR-REFLECTION OF LIGHT, MULTIPLE REFLECTION AND HUMAN EYE AND ITS CARE-IMPORTANT QUESTIONS
  1. Red light cannot be dispersed by a glass prism because it :

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  2. The bending of a beam of light when it passes obliquely from one mediu...

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  3. Name the part of a lens through which a ray of light passes without su...

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  4. In a simple microscope lens used is:

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  5. A positive magnification greater than unity indicates:

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  6. An object is placed 12 cm from a convex lens whose focal length is 10c...

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  7. The image produced by a concave lens is:

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  8. A virtual image is formed by:

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  9. Where should an object be placed in order of to use a convex lens as a...

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  10. Image formed by a convex mirror is

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  11. Image formed by plane mirror is :

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  12. The geometrical centre of surface of spherical mirror is called its

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  13. Define the principal focus of a concave mirror.

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  14. The splitting of light into its component colors is called :

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  15. Radius of curvature of a concave mirror is always ........ to the mirr...

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  16. The mirror used by dentists to concentrate light on the tooth to be ex...

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  17. An object is placed 1.5m from a plane mirror. How far is the image fro...

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  18. A drop of water appears like pear due to:

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  19. The radius of curvature of a plane mirror

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  20. Which one among the following is used to make periscope?

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