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Today We will see The important Questions of All physics  Class 10th JKBOSE

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The Light Contains 10 Marks According to Syllabus of JKBOSE

Chapter no :1

Light Reflection and Refraction

IMPORTANT QUESTIONS OF LIGHT REFLECTION AND REFRACTION

Qno 1.What is reflection? State the laws of Reflection. With a Suitable Diagram? (2015,2012,2009,2017)

Qno 2. Give Four Uses Of Concave Mirror ?

Qno 3. Difference between Real Image and Virtual Image ?

Qno 4. Definition Of Spherical Mirrors ? Also Define Concave and Convex Mirror With Suitable Diagram ?

Qno5. Define Pole of Mirror ?

Qno6 .Give Four Uses Of convex Mirror ?

Qno7. Give Some Difference between Concave and Convex Mirror?

Qno8.What is Mirror Formula?

Qno9. Define Principal Focus In Case Of Concave and Convex Mirror?

Qno10. Define Focal length and Write the relation between the Focal length and Radius of Curvature?

Qno11. The Radius of Curvature of a Spherical Mirror is 20 cm Find it's Focal length?

Qno12.What is Magnification Of a Spherical Mirror?

Qno13.Write various Sign Conventions For Spherical Mirrors. With a Suitable Diagram?

Qno14.Define Refraction ? State and explain Laws of Refraction of Light. With a suitable diagram?

Qno15.Explain the Refraction of light through Glass slab. Also draw a suitable diagram?

Qno16. Explain The term "Refractive Index" Also Give Examples of any medium

Qno17.Distinguish between Reflection And Refraction?

Qno18.Why do we prefer a convex mirror as a rear view mirror in vechicles?

Qno19. A concave mirror is used as a head mirror by ENT specialists. The same Mirror can also be used as a shaving Mirror Why?

NOTE: image Formation For Spherical Mirrors are very Important Both Concave as well as convex image Formation cases are important and are expressed in the examination view. So if you are weak in theory you can do these image formations They are present at Your Science Book

Qno20. What is Power Of Lens? Give and State it's SI unit.

Qno21.Diffetentiate between Concave and convex Lens?

Qno22. What is Power of Combination Of Lens?

NOTE: All Numericals are important. You can go your Ncert Book All the Numerical Questions Are coming in your Book. Practice them

IF YOU WANT SOLUTIONS THEN COMMENT ME ..........

END OF CHAPTER LIGHT

CHAPTER NO 2

HUMAN EYE AND THE COLOURFUL WORLD

Human eye and the colourful contains Total 5 Marks

So it contains 1 short answer type question and 1 MCQ

So let's see important questions of this chapter

Qno1.Explain the Structure and working of Human Eye?

Qno2. Describe Briefly the various Defects of Vision?

Qno3. What is Meant by Power Of Accommodation Of the Eye?

Qno4. Why do Stars 🌟 Twinkle?

Qno5. Why do the Sun 🌞 appear reddish early in the morning as well as in evening?

Qno6. Explain Why the Plants don't Twinkle?

Qno7. What is dispersion of Light. Why is the cause of Dispersion?

IF YOU NEED THE ANSWERS OF THESE QUESTIONS COMMENT ME .....

END OF CHAPTER HUMAN EYE AND THE COLOURFUL WORLD

CHAPTER NO 3

ELECTRICITY

IT CONTAINS 6 MARKS IN THE BOARD EXAMINATION POINT OF VIEW

IMPORTANT QUESTIONS OF ELECTRICITY ARE:

QNO1. Why is the tungsten used almost exclusively for filament of electric lamps?

Qno2. Why are the conductors of electric heating devices,such as bread toasters and electric irons,made of an alloy rather than pure metal?

Qno3. Why is series arrangement not used for domestic circuits?

Qno4. How does the resistance of a wire vary with its area of cross section

Qno5. Why are copper and Aluminium usually employed for electricity transmission?

Qno6.What is the need of combining different resistors? What is the resultant resistance when a Number of resistances are connected in series?

Qno7. Find the equivalent resistance of the resistances connected in parallels?

Qno8. State and Explain Ohms law?

Qno9. What is ohms law? How can be it verified?

Qno10. What do you understand by electric current? How is it expressed?

If you want answers of these questions then comment me

END OF CHAPTER ELECTRICITY

Chapter no 4

Magnetic effect of electric current

It contains 4 marks in Examination point of view

Important questions of Magnetic effect of electric current are:

QNO1. Write a note on magnetic Field and Magnetic Field Lines?

Qno2.Draw a labelled diagram of an electric motor? Explain its principal and working what is the function of a split ring in electric motor

Qno3. Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the Function of brushes?

Qno4. List the properties of magnetic lines of force?

Qno5. State Flemings left hand ✋ rule ?

END OF CHAPTER MAGNETIC EFFECT OF ELECTRIC CURRENT

CHEMISTRY CLASS 10TH 

Chapter No 1 

Chemical equation and reaction

Contains 5 Marks 

QNO1.   What is difference between displacement and double displacement reactions ? Give equations for these reactions.

Qno2. Explain the following terms with examples:

1. Corrosion

2. Rancidity

Qno3. What is balanced chemical equation? Describe the steps involved in balancing a chemical equation.

Qno4. With the help of example. Explain the phenomenon of corrosion. How is it caused?

Qno5. What do you understand by combustion reaction? Explain with examples.

Qno6. Explain oxidation and reduction with two examples in each case?

End of chapter No 1