15. COMMUNICATION SYSTEMS ( SHORT QUESTION ANSWER 2022 )
15. COMMUNICATION SYSTEMSQ.1. Explain the following terms :
(i) Ground waves (ii) Sky waves (iii) Space…
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physics class 12 important questions
14. SEMI CONDUCTOR ELECTRONICS : MATERIALS, DEVICES & SIMPLE CIRCUITS TILE (…
14. SEMI CONDUCTOR ELECTRONICS : MATERIALS, DEVICES & SIMPLE CIRCUITS TILEQ.1. Distinguish between an…
13. NUCLEI ( SHORT QUESTION ANSWER 2022 )
13. NUCLEIQ.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. ATOMSQ.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 RADIATIONQ.1. Draw the graphs showing the variations of photo-electric…
10. WAVE OPTICS ( SHORT QUESTION ANSWER 2022 )
10. WAVE OPTICSQ.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 INSTRUMENTSQ.1. (a) When a low flying aircraft passes overhead, we sometimes…
8. ELECTROMAGNETIC WAVES ( SHORT QUESTION ANSWER 2022 )
8. ELECTROMAGNETIC WAVESQ. 1. State the principle of production of em waves.Ans ⇒The accelerated charge…
7. ALTERNATING CURRENT ( SHORT QUESTION ANSWER 2022 )
7. ALTERNATING CURRENTQ.1. What are advantages and disadvantages of a.c. over d.c. ?Ans ⇒ Advantages of…
6. ELECTROMAGNETIC INDUCTION( SHORT QUESTION ANSWER 2022 )
6. ELECTROMAGNETIC INDUCTIONQ.1. What are the advantages or application of eddy currents ?Ans ⇒ …