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# important questions for class 12 physics chapter wise with solution

## 15. COMMUNICATION SYSTEMS ( SHORT QUESTION ANSWER 2022 )

15. COMMUNICATION SYSTEMS Q.1. Explain the following terms : (i) Ground waves (ii) Sky waves (iii) Space…

## 14. SEMI CONDUCTOR ELECTRONICS : MATERIALS, DEVICES & SIMPLE CIRCUITS TILE (…

14. SEMI CONDUCTOR ELECTRONICS : MATERIALS, DEVICES & SIMPLE CIRCUITS TILE Q.1. Distinguish between an…

## 13. NUCLEI ( SHORT QUESTION ANSWER 2022 )

13. NUCLEI Q.1. Define binding energy of a nucleus. Ans ⇒ It is defined as the amount of work done to…

## 12. ATOMS ( SHORT QUESTION ANSWER 2022 )

12. ATOMS Q.1. State Bohr's frequency condition. Ans ⇒ It states that the frequency v of a radiation…

## 11. DUAL NATURE OF MATTER AND RADIATION ( SHORT QUESTION ANSWER 2022 )

11. DUAL NATURE OF MATTER AND RADIATION Q.1. Draw the graphs showing the variations of photo-electric…

## 10. WAVE OPTICS ( SHORT QUESTION ANSWER 2022 )

10. WAVE OPTICS Q.1. Two electric lines of force cannot intersect each other. Why ? Sketch the lines of…

## 9. RAY OPTICS AND OPTICAL INSTRUMENTS ( SHORT QUESTION ANSWER 2022 )

9. RAY OPTICS AND OPTICAL INSTRUMENTS Q.1. (a) When a low flying aircraft passes overhead, we sometimes…

## 8. ELECTROMAGNETIC WAVES ( SHORT QUESTION ANSWER 2022 )

8. ELECTROMAGNETIC WAVES Q. 1. State the principle of production of em waves. Ans ⇒The accelerated charge…

## 7. ALTERNATING CURRENT ( SHORT QUESTION ANSWER 2022 )

7. ALTERNATING CURRENT Q.1. What are advantages and disadvantages of a.c. over d.c. ? Ans ⇒ Advantages of…

## 6. ELECTROMAGNETIC INDUCTION( SHORT QUESTION ANSWER 2022 )

6. ELECTROMAGNETIC INDUCTION Q.1. What are the advantages or application of eddy currents ? Ans ⇒ …