Question

QUE.1) Solve the following questions (any 5) 15 Marks
1) Graphite is used to make carbon electrodes, explain ? OR
Why concave mirrors are used in solar equipment's ?
2)Define (any one) 1) Work
2) Power
3)Potential Difference
3) Write the mirror formula ?
4) Which type of bond is present in saturated hydrocarbons ? Which is the smallest hydrocarbon ?
5) Name the symbol of electrical component?
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6) Identify the type of bulb connected in the ckt.?
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7) If the angle between two plane mirrors is 120 degree then calculate number of images formed ?
Q2) Solve any five 15 marks
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2) Observe the diagram and answer questions given
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1) What is the position of the object ?
2)Write the position and nature of the image ?
3) What is seen in this expt? state reason behind it ? ?
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4)Which gas is released in fire extingusher ?Write the property and use ?
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5)Distinguish between kinetic and potential energy ?
6)What will happen if an electric current is flown in the circuit ?Which material is present in the pencil ?Which property of material is found in this experiment ?
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7) Write rules of drawing ray diagram by observing following figure ?
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8) Resistors having resistance of 15 , 20, 10 ohm connected in parallel. What is the effective resistance in circuit ?

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Answer 1

Answer:

So, much

I can't solve it sorry