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Standard VIII

Physics

Calculating the Total Number of Images

Question 20 b...

Question

Question 20 (b)

Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see.

Indicate the positions of the mirrors in the figure.

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Solution

Positions of the mirrors are as shown in the figure.

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Question 20 (a)

Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see.

How many mirrors should he use to see the objects?

Question 20 (d)

Boojho planned an activity to observe an object A through pipes as shown in the figure, so that he could see objects which he could not directly see.

Indicate the direction of rays in the figure.

Question 20 (c)

Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see.

What must be the angle with respect to the incident light at which he should place the mirrors?

Question 20 (e)

Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see. At each corner a plane mirror is placed at 45 degrees in order to deviate the light rays by 90 degrees.

If any of the mirrors is removed, will he be able to see the objects?

Q. Boojho stands at A just on the side of plane mirror as shown in the figure. Can he see himself in the mirror? Also can he see the image of objects situated at P, Q, and R?
Explain your answer.
Figure

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Calculating the Total Number of Images

Standard VIII Physics

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Question 20 (b) Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see. Indicate the positions of the mirrors in the figure.

Positions of the mirrors are as shown in the figure.

Question 20 (b)

Boojho planned an activity to observe an object A through pipes as shown in figure, so that he could see objects which he could not directly see.

Indicate the positions of the mirrors in the figure.