shit that should be in physics but isnt

Question 1

isosters

Answer 1

same no. of valence electron

Question 2

isotone

Answer 2

same no. of neutrons

Question 3

isodiaphers

Answer 3

same diff between neutron and proton

Question 4

r atom wrt r nucleus

Answer 4

10^5

Question 5

vol of atom wrt

Answer 5

10^15

Question 6

F of attraction/repulsion

Answer 6

k q1 q2 / r^2 (mod)

Question 7

value of k

Answer 7

1/4 pi ep naught or 9*10^9

Question 8

frequency formula

Answer 8

1/T

Question 9

velocity formula

Answer 9

v= nu * lambda

Question 10

energy formula

Answer 10

h c/ lambda

Question 11

spectrum order

Answer 11

cosmic, gamma, X, UV, visible, infra, micro, radio

Question 12

angular momentum bohr’s model

Answer 12

nh/2 pi

Question 13

radius

Answer 13

0.53 A * n^2/z

Question 14

velocity

Answer 14

2.18 * 10^6 * z/n

Question 15

relation bw total energy KE and PE

Answer 15

TE=-KE= 1/2 PE

Question 16

energy of electron emmitted by photoelectric effect

Answer 16

work func + KE

Question 17

max no. of waves emmitted by electron in excited state

Answer 17

(n2-n1)(n2-n1+1)/2

Question 18

value of n2 for max frequency

Answer 18

infinite

Question 19

wave no.

Answer 19

1/lambda

Question 20

biggest drawback of bohr model

Answer 20

violates uncertainty principle

Question 21

uncertainty formula

Answer 21

delta x * delta p is greater than equal to h/4 pi

Question 22

delta p in terms of wavelength

Answer 22

h delta lambda/ lambda sq

Question 23

delta lambda* delta x

Answer 23

lambda sq/ 4 pi

Question 24

de broglie wavelenght

Answer 24

h/ root 2m KE or root 150/V

Question 25

de broglie wavlenght for alpha particle

Answer 25

0.101/ root V

Question 26

ml for Px

Answer 26

1

Question 27

ml for Py

Answer 27

-1