true or false
When a ray of light travels from air to water, its speeds up.
22.The incident ray, the normal to the mirror at the point of incidence and the reflected ray, all lie in the
same plane.
23.Image formed bya plane mirror is always virtual and erect.
24.The principal focus of a spherical mirror lies midway between the pole and centre of curvature
Answers
Answered by
0
Answer:
21)true
22)true
23)true
24)true
Answered by
1
Answer:
22 true.
23 true.
24 true.
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