Match List - I (Experiment performed) with List -II (Phenomena discovered/associated) and select cor

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12.Atoms

medium

Match List $- I$ (Experiment performed) with List $-II$ (Phenomena discovered/associated) and select the correct option from the options given the lists

List $- I$ List $- II$

$(1)$ Davisson and Genner $(i)$ Wave nature of electrons

$(2)$ Millikan's oil drop experiment $(ii)$ Charge of an electron

$(3)$ Rutherford experiment $(iii)$ Quantisation of energy levels

$(4)$ Franck-Hertz experiment $(iv)$ Existence of nucleus

$(1 )-(i), (2)-(ii), (3)-(iii), (4)-(iv)$

$(1 )-(i), (2)-(ii), (3)-(iv), ( 4)-(iii)$

$(1)-(iii), (2)-(iv), (3)-(i), (4)-(ii)$

$(1 )-(iv), (2-(iii), (3)-(ii), (4 )-(i)$

(JEE MAIN-2014)

Solution

$(1)$ Davisson and Gemner experiment-wave nature of electrons.
$(2)$ Millikan's oil drop experiment – charge of an electron.
$(3)$ Rutherford experiment – Existance of nucleus.
$(4)$ Frank-Hertz experiment – Quantisation of energy levels.

Standard 12

Physics

An alpha particle colliding with one of the electrons in a gold atom loses

easy

How many energy rays of $\alpha -$ particles emitted from $_{83}^{214}Bi$ were taken?

medium

Explain the Rutherford atomic model and its limitation.

hard

Answer the following questions, which help you understand the difference between Thomson's model and Rutherford's model better.

$(a)$ Is the average angle of deflection of $\alpha$ -particles by a thin gold foil predicted by Thomson's model much less, about the same, or much greater than that predicted by Rutherford's model?

$(b)$ Is the probability of backward scattering (i.e., scattering of $\alpha$ -particles at angles greater than $90^{\circ}$ ) predicted by Thomson's model much less, about the same, or much greater than that predicted by Rutherford's model?

$(c)$ Keeping other factors fixed, it is found experimentally that for small thickness $t,$ the number of $\alpha$ -particles scattered at moderate angles is proportional to $t$. What clue does this linear dependence on $t$ provide?

$(d)$ In which model is it completely wrong to ignore multiple scattering for the calculation of average angle of scattering of $\alpha$ -particles by a thin foil?

medium

Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is

normal

List $- I$	List $- II$
$(1)$ Davisson and Genner	$(i)$ Wave nature of electrons
$(2)$ Millikan's oil drop experiment	$(ii)$ Charge of an electron
$(3)$ Rutherford experiment	$(iii)$ Quantisation of energy levels
$(4)$ Franck-Hertz experiment	$(iv)$ Existence of nucleus

Solution

Similar Questions

An alpha particle colliding with one of the electrons in a gold atom loses

How many energy rays of $\alpha -$ particles emitted from $_{83}^{214}Bi$ were taken?

Explain the Rutherford atomic model and its limitation.

Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is

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