Ncert- science – class 7- Chapter 11 – Light 2 Welcome to your Ncert- science – class 7- Chapter 11 – Light 2 1. A virtual image is one which: Sometimes can be and sometimes cannot be taken on a screenpp Cannot be taken on a screen Is formed only by a concave mirror Can be taken on a screen None 2. We can see a non-luminous object when light : completely passes through the object gets completely absorbed by the object emitted by the object falls on the eye is reflected from the object towards our eye None 3. ...... images cannot be caught on a screen. Real Inverted Virtual Erect None 4. The mirror used in search lights is: Plane None of these Convex Concave 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: 40 degree 50 degree 120 degree 30 degree None 6. A diminished virtual image can be formed only in:- A concave mirror A convex mirror Concave-parabolic mirror. plane mirror None 7. The image formed by a plane mirror is always ______ inverted. Virtually Laterally None of these Really None 8. Mirror used as rear view mirror is Either convex or concave Convex Plane Concave None 9. 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 10. 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 11. When a convergent beam of light is incident on a plane mirror, the image formed is Upright and virtual Upright and real Inverted and virtual Inverted and real None 12. 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 regression reflection None 13. 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. (i) is correct (i) and (ii) are correct None of the above (ii) and (iii) are correct None 14. The concave mirrors are used in: Reflecting telescope Cinema projectors All of these Magic-lanterns None 15. Which of the following can produce a virtual image for any position of the object? Concave mirror Plane mirror Convex lens All 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.
