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