Light – Reflection and Refraction — Important Questions
Gujarat Board · Class 10 · Science
44 important questions from Light – Reflection and Refraction for Gujarat Board Class 10 Science, with answers. Written for the board exams 2027.
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Important Questions from Light – Reflection and Refraction
Which of the following are laws of reflection? (Select all correct answers)
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Angle of incidence equals angle of reflection, Incident ray, normal, and reflected ray lie in same plane
The two laws of reflection are: (1) The angle of incidence is equal to the angle of reflection, and (2) The incident ray, normal at the point of incidence, and reflected ray all lie in the same plane.
What happens to light when it travels from air to water?
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It bends towards the normal
When light travels from a rarer medium (air) to a denser medium (water), it slows down and bends towards the normal. This is due to refraction.
Which of the following properties describe images formed by plane mirrors? (Select all correct answers)
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Virtual, Erect, Same size as object
Images formed by plane mirrors are always virtual (cannot be obtained on screen), erect (upright), and of the same size as the object. They are also laterally inverted.
The refractive index of a medium is the ratio of speed of light in:
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Vacuum to medium
Refractive index of a medium is defined as the ratio of speed of light in vacuum (or air) to the speed of light in that medium. It is always greater than 1 for any medium except vacuum.
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