Answer / happyguy

When electron jumps from one energy level to another it
emits energy .

Ans is (b).

A certain radioactive element A, has a half life = t seconds. In (t/2) seconds the fraction of the initial quantity of the element so far decayed is nearly how much?

0 Answers  

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A man speaks the truth 3 out of 4 times. He throws a die and reports it to be a 6. What is the probability of it being a 6?

2 Answers   Wipro,

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If the present age of my father is 39 yrs and my present age is x yrs, what is x?

1 Answers   Accenture,

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what is the image of point (3,8) in the line x + 3y = 7 ?

0 Answers  

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A constant voltage is applied between the 2 ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if (a) both the length and radius of the wire are halved. (b) both the length and radius of the wire are doubled (c) the radius of the wire is doubled (d) the length of the wire is doubled.

1 Answers   Wipro,

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How to find patterns in noisy data?

1 Answers  

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Can independent origins be established for two families of transport systems having no sequence or motif similarities without three-dimensional structural data?

0 Answers  

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An electron is injected into a region of uniform magnetic flux density with the components of velocity parallel to and normal to the flux. What is the path of the electron?

1 Answers  

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what is the use of Morphometrics?

1 Answers  

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Select the correct statements (a) A simple harmonic motion is necessarily periodic (b) An oscillatory motion is necessarily periodic (c) A periodic motion is necessarily oscillatory (d) All of the above.

2 Answers   Wipro,

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Which of the following is a recursive set of production (a) S ?> a|A, A ?> S (b) S ?> a|A, A ?> b (c) S ?>aA, A?>S (d) None of these.

2 Answers   Wipro,

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What does the ultrametric property of a tree tell us about the evolutionary process?

0 Answers  

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