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The radioactive decay constant is 4.28 x...

The radioactive decay constant is `4.28 xx 10^-4 year^-1`. What is the half life period of it?

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UNITED BOOK HOUSE-MODEL PAPER SET-03-EXERCISE
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  2. Mention two characteristics of electromagnetic waves.

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  3. The radioactive decay constant is 4.28 xx 10^-4 year^-1. What is the h...

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  4. Explain why sky waves ate suitable for long range communication.

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  5. What is surface charge density?

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  6. Two particles each carrying a charge of 2 xx 10^-8 C and connected by ...

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  7. The surface charge density of an infinite charged sheet is 10^-7 Cm^-2...

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  8. Show that the distribution of charge between two conductors connecting...

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  9. The current through the wire is 10 A as shown in figure below. Find ma...

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  10. A circular coil of radius 0.01 m has 100 turns and a current 7A. It is...

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  11. A circular coil of radius 0.01 m has 100 turns and a current 7A. It is...

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  12. An air bubble in a glass sphere (mu = 1.5) of radius 2 cm is 1 cm deep...

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  13. What is the significance of Plank's constant in quantum theory? The st...

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  14. Write two characteristics features of nuclear force which distinguish ...

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  15. What are p-type and n-type semiconductor? What is the resistance of a ...

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  16. How NOR gate is formed? What is its symbol? Construct a truth table fo...

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  17. In potentiometer method'a cell can be balanced at 480cm. It is balance...

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  18. A conducting wire of length l is rotating with angular velocity w in a...

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  19. An aeroplane is travelling at the speed of 360 km//hr along the horiz...

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  20. The equation of an a.c. current I = 50 sin 100 pi t.Find Frequency.

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