 # Nt1310 Unit 1 Study Guide

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2941 Words Grammar Plagiarism  Writing  Score Nt1310 Unit 1 Study Guide QUESTION BANK – LIGHT

01. How do we see the things in light? 02. Write the different properties of light? 03. What are the different optical phenomena that takes place due to light? 04. Deflection of light? 05. State laws of reflection of light? 06. What are the properties of the image formed by a plane mirror? 07. What are the two types of spherical mirrors? 08. What is a concave mirror and convex mirror? 09. Define the following of a spherical mirror? a) pole b) centre of curvature c) Principal focus d) Principal axis e) Radius of curvature f ) aperture g) focal length

10.What is the relationship between the radius of curvature and focal length? 10. A ray of light makes an ∟30° to the normal. Find
Are optical density and mass density same. If not justify.

6

78. What is a lens. And what are the two prominent types of lenses that we use in the lab. How will you identify them physically and with its property? 79. A boy while playing with a convex lens looks at a printed paper through the lens in two different places of the paper A and B. At A he notices that the letters of the printed matter appear bigger and at B the paper starts to burn. Which of the places A or B is closer to the lens and why? 80. Define the optic centre, focal length, principle axis, radius of curvature, power, principle focus, aperture and centre of curvature of a lens. 81. Write the new Cartesian sign convention rules for a lens with a diagram. 82. Write the formula for a lens and the formula for magnification for a lens. 83. Why is the power of a convex lens is positive and concave lens is negative 84. Define one dioptre. 85. Write the rules to be followed to draw the ray diagram for a lens with diagram 86. Draw the ray diagram for a lens which forms a virtual magnified image. 87. Draw the ray diagram for a lens which forms a virtual diminished

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