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Questions and Answers
What is the phenomenon where light bends around a small opaque object?
What is the term used to describe the path of light?
What is the primary reason why we are unable to see objects in a dark room?
What is the reason why we can see objects through a transparent medium?
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What is the phenomenon where light is redirected by a medium, resulting in a change in its direction?
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Why does the straight-line treatment of optics using rays fail in certain situations?
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What is the significance of a negative sign in the value of the magnification?
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What is the formula to find the focal length of a mirror?
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If the image distance is 7.50 m, what is the radius of curvature of the mirror?
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What is the magnification of an object when it is placed at a distance of 5.00 m from a convex mirror of radius of curvature 3.00 m?
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If an object is placed at a distance of 25.0 cm from a concave mirror of focal length 15.0 cm, what is the distance of the image from the mirror?
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What is the size of the image formed by a concave mirror when an object of 4.0 cm is placed at a distance of 25.0 cm from the mirror?
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What is the point on the principal axis where the rays of light appear to diverge after refraction from a concave lens?
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What is the distance between the position of the lens and the position of the image of the Sun in Activity 10.11?
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How many principal foci does a lens have?
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What is the letter used to represent the focal length of a lens?
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What is the purpose of drawing five parallel straight lines on a long table in Activity 10.12?
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What is the correct sequence of steps to find the approximate focal length of a convex lens?
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What is the point on the surface of a spherical mirror represented by the letter P?
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Which of the following statements is true about the centre of curvature of a concave mirror?
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What is the letter R used to represent in spherical mirrors?
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What is the name of the point that lies outside the reflecting surface of a spherical mirror?
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What can be approximated by the surface of a spoon curved inwards?
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What is the distance between the pole and the centre of curvature equal to?
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What is the significance of the positive sign of v in the lens equation?
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What is the formula for the magnification of an image formed by a lens?
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What is the effect of a convex lens with a short focal length on light rays?
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What is the degree of convergence or divergence of light rays achieved by a lens expressed in terms of?
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What is the height of the image formed by the lens, given that the object distance is 15 cm and the focal length is 10 cm?
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What is the magnification of the image formed by the lens, given that the object distance is 15 cm and the image distance is 30 cm?
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