10th Std Exam Preparation PHYSICS www.189pkh.wordpress.com

SCIENCE BLUE PRINT – 2015–16 PHYSICS Sl. No Marks Remembering Understanding Applying Skill Total 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 OT VSA SA LA1 LA2 Types of motion   2(1) Heat engines 4(2) Sound 1(1). Electromagnetic induction 4(1) Electronics 3(1) Space science 1(1) 4(3) www.189pkh.wordpress.com

www.189pkh.wordpress.com

1) What is electromagnetic induction? On what factors does induced emf depend? www.189pkh.wordpress.com

The speed at which the magnet or the coil moves. Area of the coil. www.189pkh.wordpress.com

2) State Faraday’s laws of electromagnetic induction. www.189pkh.wordpress.com

3) State Fleming’s right hand rule and Fleming’s left hand rule. www.189pkh.wordpress.com

www.189pkh.wordpress.com

4) Mention two uses of DC motor and two uses of AC. www.189pkh.wordpress.com

5) What is a transformer? Explain the types of transformer and what is the relation between current and voltage of primary and secondary coils? The device that used for stepping up or stepping down the AC voltage is called a transformer. Step up transformer: A transformer that increases the input voltage of an AC source is a step up transformer. Step down transformer :A transformer that decreases the input voltage of an AC source is a step up transformer. The relation between current and voltage of primary and secondary coils of a transformer can be expressed as, www.189pkh.wordpress.com

6) Draw a neat sketch of A.C. Dynamo and label the parts. www.189pkh.wordpress.com

7) Draw a neat sketch of D.C. Dynamo and label the parts. www.189pkh.wordpress.com

SCIENCE BLUE PRINT – 2015–16 PHYSICS Sl. No Marks Remembering Understanding Applying Skill Total 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 OT VSA SA LA1 LA2 Types of motion   2(1) Heat engines 4(2) Sound 1(1). Electromagnetic induction 4(1) Electronics 3(1) Space science 1(1) 4(3) www.189pkh.wordpress.com

ELECTRONICS semiconductors Conductors Intrinsic Extrinsic n-type p-type Diode Transistor Superconductivity Display the flow chart. As in the below slide. Display the texts one by one www.189pkh.wordpress.com

www.189pkh.wordpress.com

1)What are semiconductors? Distinguish between extrinsic and intrinsic semi conductors. Ans : The substances which have conductivity lying between that of conductors and insulators are known as semiconductors. www.189pkh.wordpress.com

2)What are semiconductors? Distinguish between n type and p type semi conductors. Ans : The substances which have conductivity lying between that of conductors and insulators are known as semiconductors. www.189pkh.wordpress.com

3) What is meant by forward and reverse bias of a diode 3) What is meant by forward and reverse bias of a diode? Indicate in figure. When the positive of the battery is connected to p-region and the negative terminal of the battery is connected to n-region of the junction diode it is said to be forward biased. When the positive of the battery is connected to n-region and the negative terminal of the battery is connected to p-region of the junction diode it is said to be reverse biased. www.189pkh.wordpress.com

4) Mention important characteristics and applications of a diode. Ans : A p-n junction diode allows current to pass through , preferentially in one direction. www.189pkh.wordpress.com

5) What is a transistor? Distinguish between p-n-p and n-p-n transistor. Ans : Transistor is a resistor that amplifies electrical signal passing through its input to output terminals. It is a three terminal semiconductor device. www.189pkh.wordpress.com

www.189pkh.wordpress.com

6) What are the functions of three regions of a transistor? www.189pkh.wordpress.com

7) Mention the applications of a transistor? www.189pkh.wordpress.com

8) Write a note on superconductivity. www.189pkh.wordpress.com

SCIENCE BLUE PRINT – 2015–16 PHYSICS Sl. No Marks Remembering Understanding Applying Skill Total 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 OT VSA SA LA1 LA2 Types of motion   2(1) Heat engines 4(2) Sound 1(1). Electromagnetic induction 4(1) Electronics 3(1) Space science 1(1) 4(3) www.189pkh.wordpress.com

1. What is light year? www.189pkh.wordpress.com

2. The raw material for the formation of protostar is hydrogen. Fill in the blanks. 2. The raw material for the formation of protostar is hydrogen. www.189pkh.wordpress.com

2. The heaviest element formed in the stellar evolution before supernova explosion is iron. www.189pkh.wordpress.com

3. State Hubble’s law. www.189pkh.wordpress.com

4) The Sun is an example for Steady-state star. www.189pkh.wordpress.com

5) What is Chandrashekar limit? www.189pkh.wordpress.com

6. How a protostar formed? www.189pkh.wordpress.com

7. Write different stages in evolution of star. www.189pkh.wordpress.com

8) Give example for different colour stars. www.189pkh.wordpress.com

9. The diameter of Milky Way is about one lakh light year. The central thickness of Milky Way is about 6000 light year. www.189pkh.wordpress.com

10. Explain types of galaxy. www.189pkh.wordpress.com

11. Explain the principle of rockets. www.189pkh.wordpress.com

12. Explain the working of rockets. www.189pkh.wordpress.com

13. Draw and label the of rockets. www.189pkh.wordpress.com

13. Match the following. www.189pkh.wordpress.com

THANK YOU www.189pkh.wordpress.com