Question

Complete the given table for concave mirror-

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Answer 1

Answer:

A. Nature of image = inverted and real

Position of image=between C and F

B. Nature of image =Erect, virual

Position of image =behind the mirror

C. Nature of image =inverted and real

Position of image =At infinity

Explanation:

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Answer 2

Question

The area of a square field is 3136 sqm. A rectangular field whose length is thrice its breadth, has

its perimeter equal to perimeter of the square field. Find the area of the rectangular field.

Answer

Answer:

784

Explanation:

Let B the breadth

the length 4B

4b×b = 3136 ( transfer 4 otherside)

b ^2= 3136÷4

b^2= 784

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