Ncert- science – class 7- Chapter 11 – Light 2 Welcome to your Ncert- science – class 7- Chapter 11 – Light 2 1. Mirror used as rear view mirror is Concave Convex Plane Either convex or concave None 2. 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 3. A virtual image is one which: Cannot be taken on a screen Can be taken on a screen Sometimes can be and sometimes cannot be taken on a screenpp Is formed only by a concave mirror None 4. 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 50 degree 40 degree 120 degree None 5. 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 6. The mirror used in search lights is: Plane Convex None of these Concave None 7. Which of the following can produce a virtual image for any position of the object? Concave mirror All of the above Convex lens Plane mirror None 8. A diminished virtual image can be formed only in:- plane mirror Concave-parabolic mirror. A convex mirror A concave mirror None 9. 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 10. The image formed by a plane mirror is always ______ inverted. Really Laterally None of these Virtually None 11. 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 12. We can see a non-luminous object when light : gets completely absorbed by the object completely passes through the object emitted by the object falls on the eye is reflected from the object towards our eye 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. (ii) and (iii) are correct None of the above (i) and (ii) are correct (i) is correct None 14. ...... images cannot be caught on a screen. Real Inverted Virtual Erect None 15. The concave mirrors are used in: Magic-lanterns Cinema projectors All of these Reflecting telescope 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.
