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 Plane mirror All of the above Concave mirror None 2. A diminished virtual image can be formed only in:- Concave-parabolic mirror. plane mirror A convex mirror A concave mirror None 3. The mirror used in search lights is: Convex None of these Concave Plane None 4. Select the correct alternative:The property due to which a light ray striking a surface and returned back into the same medium is called reflection refraction reflex action regression None 5. 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 (i) and (ii) are correct (i) is correct None of the above None 6. A virtual image is one which: Can be taken on a screen Sometimes can be and sometimes cannot be taken on a screenpp Is formed only by a concave mirror Cannot be taken on a screen None 7. When a convergent beam of light is incident on a plane mirror, the image formed is Inverted and real Upright and real Upright and virtual Inverted and virtual None 8. Mirror used as rear view mirror is Plane Either convex or concave Concave Convex None 9. Which mirror should be used to obtain a parallel beam of light from a small lamp? Concave mirror Convex mirror Plane mirror None of the above None 10. When a convergent beam of light is incident on a plane mirror, the image formed is Inverted and virtual Upright and real Upright and virtual Inverted and real None 11. 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: 120 degree 40 degree 50 degree 30 degree None 12. ...... images cannot be caught on a screen. Inverted Virtual Erect Real None 13. We can see a non-luminous object when light : emitted by the object falls on the eye gets completely absorbed by the object completely passes through the object is reflected from the object towards our eye None 14. The concave mirrors are used in: Cinema projectors Magic-lanterns Reflecting telescope All of these None 15. The image formed by a plane mirror is always ______ inverted. Virtually None of these Laterally Really 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.
