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