Question

Which of the following lens converges light to the smallest extent?( A) +200 ( B). +1.0 D ( C.) +0.25 D (D)-0.5 D​

Answer 1

Answer:

Option D

Explanation:

Light is a form of energy that produces in us the sensation of sight.

• Reflection of light is the phenomenon of bouncing back of light in the same medium on striking the surface of any object.

• The two laws of reflection are:

(i) the incident ray, the reflected ray and the normal (at the point of incidence), all lie in the same plane.

(ii) the angle of reflection (r) is always equal to the angle of incidence (i)

∠r = ∠i

• In a plane mirror, the image of a real object is always

(i) virtual,

(ii) erect

(iii) of same size as the object,

(iv) as far behind the mirror as the object is in front of the mirror.

(v) laterally inverted.