Yasmin Mital

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Yasmin Mital

Asked: 3 years agoIn: Momentum

In a perfectly elastic collision, the relative speed of approach and relative speed of separation are
A. equal
B. in equal
C. zero
D. infinite

Yasmin Mital

Asked: 3 years agoIn: General Awareness

A classical model for the hydrogen atom consists of a singal electron of mass `m_(e)` in circular motion of radius r around the nucleous (proton). Since the electron is accelerated, the atom continuously radiates electromagnetic waves. The total power P radiated by the atom is given by `P = P_(0)//r^(4)` where `P_(0) = (epsi^(6))/(96pi^(3)epsi_(0)^(3)c^(3)m_(epsi)^(2))` (c = velocity of light) (i) Find the total energy of the atom. (ii) Calculate an expression for the radius r(t) as a function of time. Assume that at `t = 0`, the radiys is `r_(0) = 10^(-10)m`. (iii) Hence or otherwise find the time `t_(0)` when the atom collapses in a classical model of the hydrogen atom. Take: `[2/(sqrt(3))(e^(2))/(4piepsi_(0))1/(m_(epsi)c^(2)) = r_(e) ~~ 3 xx 10^(-15) m]`

Yasmin Mital

Asked: 3 years agoIn: General Awareness

The potential energy `U` in joule of a particle of mass `1 kg` moving in `x-y` plane obeys the law`U = 3x + 4y`, where `(x,y)` are the co-ordinates of the particle in metre. If the particle is at rest at `(6,4)` at time `t = 0` then :
A. the particle has constant acceleration
B. the particle has zero acceleration
C. the speed of particle when it crosses the y-axis is `10 m//s`.
D. co-ordinates of particle at `t = 1 s` are `(4.5,2)`.

Yasmin Mital

Asked: 3 years agoIn: Class 10

Grammar notes ??

Yasmin Mital

Asked: 3 years agoIn: Class 10

What is power of accomodation of eye

Yasmin Mital

Asked: 3 years agoIn: General Awareness

Prove the following by using the principle of mathematical induction for all `n in N`:`41^n-14^n`is a multiple of 27.

Yasmin Mital

Asked: 3 years agoIn: Class 09

Money exchange derivation formula

Yasmin Mital

Asked: 3 years agoIn: Class 10

Which reference book is best for computer applications

Yasmin Mital

Asked: 3 years agoIn: Class 11

Map work ch writing and city life

Yasmin Mital

Asked: 3 years agoIn: Class 10

3rd sector ke bdhte mahtav ko 5 kardo **** spast kijiye

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Yasmin Mital

In a perfectly elastic collision, the relative speed of approach and relative speed of separation are
A. equal
B. in equal
C. zero
D. infinite

Grammar notes ??

What is power of accomodation of eye

Prove the following by using the principle of mathematical induction for all `n in N`:`41^n-14^n`is a multiple of 27.

Money exchange derivation formula

Which reference book is best for computer applications

Map work ch writing and city life

3rd sector ke bdhte mahtav ko 5 kardo **** spast kijiye

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