Which is a better reflector-a plane mirror or a right angled prism?

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

Yes, a plane mirror can be called a spherical mirror of infinite radius of curvature.

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...

The driver will not be able to see traffic spread over a large area behind him.

(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

Angle of incidence i = (A + δm)/2 Concept : i + e = A + δ But at minimum angle of deviation, i = e

(a) {92 + 122 = 152}

(c) Area of the field 1/2 (18 x 40) = 360 m2  Father divided the field in the ratio 2 : 1 : 1 by keeping bigger part for himself.  He devided...