UPTET · Mathematics and Science (Paper II)
Rectilinear propagation, reflection, refraction and image formation by mirrors/lenses.
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Q1 · Light · EASY
A student stands in front of a plane mirror at a distance of 3 metres. What is the distance between the student and his image in the mirror?
Q2 · Light · EASY
A ray of light passes from air into water. Which of the following statements is correct about the path of the ray?
Q3 · Light · MEDIUM
A concave mirror has a focal length of 15 cm. An object is placed 30 cm in front of the mirror. Where will the image be formed?
Q4 · Light · MEDIUM
A teacher demonstrates that light travels in straight lines by showing that shadows have sharp edges on a sunny day. Which property of light is being demonstrated?
Q5 · Light · HARD
A convex lens forms a real, inverted image of the same size as the object. If the focal length of the lens is 20 cm, at what distance from the lens is the object placed?