Q-1 (A) Multiple Choice Question:
1) What is the nature of image obtained by a pinhole camera? a) Small b) Large. c) Erect d) Inverted 2) How many terminals does an electric cell have?
a) One b) two c) three d) four 3) Which of the following metal is not attracted by a metal?
a) Nickel b) Cobalt c) Irond) Silver. 4) What is the other name of water vapour? a) Air b) Steam c) Water d) Cloud
5) On which factor does the rate of evaporation of water depend? a) Temperature b) Wind c) Open area of vessel d)All the given
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1) A pinhole camera produces a real, inverted image which is smaller in size than the object.
2)An electric cell has two terminals.
3) sorry don't know..
4)all of the above
5)humidity
Evaporation depends on the amount of water vapour present in the air (humidity). If the amount of water vapour present in the air is less, then evaporation is more.
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