Ncert- science – class 7- Chapter 11 – Light 2 Welcome to your Ncert- science – class 7- Chapter 11 – Light 2 1. Which of the following can produce a virtual image for any position of the object? Convex lens All of the above Concave mirror Plane mirror None 2. A ray of light is incident on a plane mirror at an angle of incidence 30 degree to the normal. The ray after reflection is deviated with an angle of: 50 degree 40 degree 120 degree 30 degree None 3. The mirror used in search lights is: Convex None of these Plane Concave None 4. We can see a non-luminous object when light : completely passes through the object is reflected from the object towards our eye emitted by the object falls on the eye gets completely absorbed by the object None 5. A diminished virtual image can be formed only in:- plane mirror Concave-parabolic mirror. A convex mirror A concave mirror None 6. A plane mirror:(i) can form real image of a real object(ii) neither converges not diverges the rays(iii) cannot form real image of a real objectChoose the correct option or options. (ii) and (iii) are correct None of the above (i) is correct (i) and (ii) are correct None 7. ...... images cannot be caught on a screen. Virtual Inverted Erect Real None 8. The concave mirrors are used in: All of these Reflecting telescope Cinema projectors Magic-lanterns None 9. The image formed by a plane mirror is always ______ inverted. Virtually None of these Really Laterally None 10. A virtual image is one which: Can be taken on a screen Cannot be taken on a screen Is formed only by a concave mirror Sometimes can be and sometimes cannot be taken on a screenpp None 11. Which mirror should be used to obtain a parallel beam of light from a small lamp? Concave mirror Plane mirror None of the above Convex mirror None 12. Mirror used as rear view mirror is Plane Concave Either convex or concave Convex None 13. Select the correct alternative:The property due to which a light ray striking a surface and returned back into the same medium is called reflex action regression reflection refraction None 14. When a convergent beam of light is incident on a plane mirror, the image formed is Inverted and real Upright and real Inverted and virtual Upright and virtual None 15. When a convergent beam of light is incident on a plane mirror, the image formed is Upright and virtual Upright and real Inverted and real Inverted and virtual None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
