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Answers
Answer:
Take a concave mirror. Hold it facing the sun. Try to get the light reflected by the mirror on a sheet of paper. Adjust the distance of the paper until you get a sharp bright spot on it .
Explanation:
A concave mirror, a mirror holder, a semi transparent screen fixed to a stand and a small candle with stand.
Procedure
Fix the concave mirror in the mirror holder and place it on edge of the table.
Mount a small candle vertically on a stand. Place it in front of the concave mirror on the left hand side (i.e. shiny surface) say on focus 'F'.
Place the screen such that the lower level of screen must be so arranged that it remains just above the principal axis of the mirror.
Locate a sharp image of candle by adjusting the position of the screen. Note and record the position and nature of the image formed on the screen.
Repeat the experiment by placing candle at different positions as mentioned in observation table [Table 1] below.