Q) Two plane mirrors are set at right angles to each other .A coin is placed in between these two plane mirrors .How many images of the coin will be seen?{Please don't provide any web link or certified answer... I want only the experts to provide the answer from their side}

The length of the shadow of an upright meter scale is 60 cm . At the same time , the length of the shadow of a tree is 4.8 m . What is the HEIGHT of the TREE ?

A) 4.8

B) 8

C) 6

D) Cannot be found based on the information given

8. Describe the heating effect of an electric bulb.

.What is rectilinear propagation of light?2. What are the angles of incidence and reflection? How are they related?

Q. Draw a ray of light that makes an angle of 20

^{0 }with the normal.(i) Draw and label the incident ray and the reflected ray, point of incidence.

(ii) Measure the angle between the incident ray and the reflected ray.

(iii) Define lateral inversion. (with example)

{Don't provide any weblink, copy - pasted or any certified answer ... I want only the experts to answer the following properly}Experts, please solve the below question with suitable reasons and explained answer:Q) Two plane mirrors are set at right angles to each other .A coin is placed in between these two plane mirrors .How many images of the coin will be seen?

{Please don't provide any web link or certified answer... I want only the experts to provide the answer from their side}

{Please don't provide any web link or certified answer... I want only the experts to provide the answer from their side}(P

lease don't provide any half answer or any copy pasted answer... also don't provide any web link or certified answer .. I want the whole answer along with the picture to be provided by the experts only... Just typically answered)...

Plz...

(And don't tell that... This is not in my syllabus.... I just want my typical explained answer)

Centre of curvature

Radius of curvature

Focus of concave mirror

The length of the shadow of an upright meter scale is 60 cm . At the same time , the length of the shadow of a tree is 4.8 m . What is the HEIGHT of the TREE ?

A) 4.8

B) 8

C) 6

D) Cannot be found based on the information given

Q.5. The property of light to travel in a straight line is called...........