Ncert- science – class 7- Chapter 11 – Light 2 Welcome to your Ncert- science – class 7- Chapter 11 – Light 2 1. The concave mirrors are used in: Magic-lanterns Reflecting telescope All of these Cinema projectors None 2. 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 3. We can see a non-luminous object when light : emitted by the object falls on the eye completely passes through the object gets completely absorbed by the object is reflected from the object towards our eye None 4. 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 5. Which of the following can produce a virtual image for any position of the object? Plane mirror All of the above Concave mirror Convex lens None 6. Mirror used as rear view mirror is Concave Plane Convex Either convex or concave None 7. ...... images cannot be caught on a screen. Real Virtual Inverted Erect None 8. When a convergent beam of light is incident on a plane mirror, the image formed is Inverted and virtual Upright and virtual Upright and real Inverted and real None 9. 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) and (ii) are correct (i) is correct 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 refraction reflex action reflection regression 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: 30 degree 40 degree 50 degree 120 degree None 12. A virtual image is one which: Cannot be taken on a screen Is formed only by a concave mirror Sometimes can be and sometimes cannot be taken on a screenpp Can be taken on a screen None 13. The image formed by a plane mirror is always ______ inverted. Really Virtually Laterally None of these None 14. A diminished virtual image can be formed only in:- A convex mirror A concave mirror Concave-parabolic mirror. plane mirror None 15. The mirror used in search lights is: Plane Convex None of these Concave 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.
