A shopkeeper wanted to fix a mirror which will give a maximum view of his shop. What type of mirror should he use? Give reason.

Convex mirrors give a virtual, erect, and diminished image of the objects placed in front of them. They are preferred as a rear-view mirror in vehicles because they give a...

(b) virtual, behind the mirror and of the same size as the object.

Convex mirrors are used as rear-view mirrors in vehicles to see the traffic at the rear side. Convex mirrors are preferred because (i) they always give an erect, though diminished image. (ii)...

By observing the virtual images formed by the three mirrors, we can distinguish between the mirrors as: (i) Plane mirror will produce an image of the same size, (ii) Concave mirror will...

(iii) 6 m Explanation: As David moves 1 m towards the mirror, the image also moves 1 m towards the mirror. Now the distance between David and mirror is 3 m and...

(ii) 2 m/s Explanation: As the car moves 2 m backward, the mirror also moves 2 m backward, so image comes 2 m forward.

(c) convex mirror

If Neinuo wanted to eat rice she should have gone to the state of West Bengal (a major rice product area).

Let the CP per gm be 0.10 Accordingly CP of 1kg i.e. 1000 gms = Rs.100. Selling price of 750 gms = [100 × 120% – 5% of 120] = 120 – 6 =...

(c) direction keeping the polestar to his left