Test-MCQ Class 10-NCERT -Science-Chapter 10-Test-1 Chapter 10: Light – Reflection and Refraction Multiple Choice Questions No of Questions : 10 Marks: 10 Please enter your email: 1. Hold a highly polished steel spoon curved inwards close to your face and move it slowly away from your face. What will you observe? Smaller and inverted image of your face Enlarged and inverted image of ypur face Enlarged and erect image of your face Smaller and erect image of your face 2. Which one of the following materials cannot be used to make a lens? Water Clay Glass Plastic 3. No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be convex either plane or convex concave plane 4. The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object? At centre of curvature Beyond centre of curvature Between principal focus and centre of curvature Between pole of the mirror and its principal focus 5. An object AB is placed in front of a convex lens at its centre of curvature as shown in figure below. Four students traced the path of light ray after refraction through the lens. Which one of them is correct? Only II Only I Only III Only IV 6. A spherical mirror and a thin spherical lens have each of a focal length -15 cm. The mirror and lens are likely to be. mirror is concave and lens is convex mirror is convex and lens is concave both concave both convex 7. Which of the following can make a parallel beam of light when light from a point source is incident on it? Concave mirror as well as convex lens Concave mirror as well as concave lens Convex mirror as well as concave lens Two plane mirrors placed at 90° to each other 8. Under which of the following conditions, a concave mirror can form an image larger than the actual object? When an object is placed between the focus and centre of curvature When an object is kept at a distance greater than its radius of curvature When an object is kept at a distance less than its focal length When an object is kept at a distance equal to its radius of curvature 9. A light ray enters from medium A to medium Bas shown in the figure. The refractive index of medium B relative to A will be equal to unity less than unity Zero greater than unity 10. Figure shows a ray of light as it travels from medium A to medium B. Refractive index of the medium B relative to medium A is c d a b Please Enter Your Name, School Name & Class in the given below box and submit: ( results will be shown on this page within few moments after submit ) Loading … Question 1 of 11
