If the nuclear force between two protons, two neutrons and between proton and neutron is denoted by ' and respectively, then

Binding energy per nucleon plot against the mass numberfor stable nuclei is shown in the figure. Which curve iscorrect?

If the D. C’s of a line are then c is equal to

For such questions, we should know the properties of direction cosines.

The value of f(0) , so that the function  becomes continuous for all is given by

Let f, g: R  R be two functions defined by and g(x) = x f(x)
Statement 1: f is a continuous function at x = 0
Statement 2: g is a differentiable function at x = 0

lf x2 and A and 8 are respecively the maximum and the minimum values of , then (A, B) is equal to

Binding energy pernucleonversus mass number curve for nuclei is shown in the figure. W,X,Y and Z are fournuclei indicate don the curve.Theprocessthatwouldrelease

Which of the plots shown in the figure represents speed(vn) of the electron in a hydrogen atom as a function of theprincipalquantumnumber(n)?

lf the Rolle’s theorem holds for the function  in the interval [−1, 1] for the point , then the value of 2a+b is

Ifis the frequency of the series limit of Lymanseries, is the frequency of the firstline of Lymanseries and
u₃ is the frequency of the series limit of the Balmer seriesthen

The diagram shows the energy levels for an electron in acertainatom. Which transitionshown represents theemissionofaphotonwiththemostenergy?

Thestopping potential, versus frequency(v) plotofasubstance is
shown in figure, the threshold wavelengthis

Thefigureshowsaplotofphotocurrentversusanodepotentialforaphotosensitivesurfaceforthreedifferent radiations.Whichoneofthefollowingisacorrectstatement?

Lightofwavelength500nmisincidentonametalwithwork function2.28 eV. The de Broglie wavelengthof the emittedelectronis:

In an experiment on photoelectric effect, a student plotsstoppingpotentialVO against reciprocalof the wavelengthoftheincidentlightfortwodifferentmetalsAandB.Theseareshown inthefigure.

Looking atthegraphs,youcanmostappropriatelysaythat

Twoinsulatingplatesarebothuniformlychargedinsuchawaythatthepotentialdifferencebetweenthemis -=20V.(i.e.,plate2isatahigherpotential).The plates are separatedby d =0.1mand canbe treatedasinfinitelylarge.Anelectronisreleasedfromrestontheinner surfaceofplate1.Whatisitsspeedwhenithitsplate2?