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Half life is 5years. How much time for n...

Half life is 5years. How much time for nucleus to become 6.25%?

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2022-Question
  1. Two blocks are connected with help of a string as shown. If coefficien...

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  2. For same current in series and parallel then r = ?

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  3. Half life is 5years. How much time for nucleus to become 6.25%?

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  4. If height of a radio station tower is h and cover the area A. Then the...

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  5. An object starts moving with constant acceleration 'a'. Distance trave...

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  6. A particle is released from rest from height of y0 from ground as show...

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  7. The speed of light in media M1 and M2 are 1.5 xx 10^8 m//s and 2.0 xx ...

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  8. A gas expands from V1 to V2 along three different processes i.e. isoth...

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  9. Moment of inertia of uniform rod about an axis perpendicular to it and...

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  10. Two infinitely long conductors carry same current are coplanar with a ...

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  11. In circuit shown, when a voltmeter of resistance 2000ohm is connected ...

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  12. A simple pendulum starts oscillating as per equation x = A cos (pi t +...

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  13. Two point charges of magnitude Q each are fixed at A and B. At what di...

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  14. Calculate value of expression (0.002858 xx 0.112)/0.5702 and mark the ...

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  15. A block of mass m is kept inside a box. The box is falling down with a...

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  16. In the shown RC discharging circuit switch S is closed at t = 0. Two c...

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  17. If units of length and force increased 4 times the unit of energy will...

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  18. A satellite revolving around earth has time period of 7hrs. if the rad...

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  19. In the decay process, find the atomic number and mass number of elemen...

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  20. The ratio of F1 : F2 = 1 : X. Then find the value of X when net force ...

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