Home
Class 12
PHYSICS
Some laws/processes are given in column-...

Some laws/processes are given in column-I. Match these with the physical phenomena given in column-II.
`{:(,"Column I",,"Column II"),((A),"Transition between two atomic energy levels".,(p),"Characteristic X-rays"),((B),"Electron emission from a material",(q),"Photoelectric effect"),((C),"Moaley's law",(r),"Hydrogen spectrum"),((D),"Change of photon energy into kinetic energy of electrons",(s),beta-"decay"):}`

Text Solution

Verified by Experts

The correct Answer is:
(A) p,r; (B) p,q,s;(C ) p; (D) q
Promotional Banner

Topper's Solved these Questions

  • SIMPLE HARMONIC MOTION

    ALLEN |Exercise Comprehension #1|3 Videos
  • SIMPLE HARMONIC MOTION

    ALLEN |Exercise Comprehension #2|3 Videos
  • SIMPLE HARMONIC MOTION

    ALLEN |Exercise MCQ s|8 Videos
  • RACE

    ALLEN |Exercise Basic Maths (Wave Motion & Dopplers Effect) (Stationary waves & doppler effect, beats)|25 Videos
  • TEST PAPER

    ALLEN |Exercise PHYSICS|4 Videos

Similar Questions

Explore conceptually related problems

Some laws/processes are given in column-I. Match these with the physical phenomena given in column-II. {:(,"Column I",,"Column II"),((A),"Nuclear fusion",(p),"Converts some matter in energy"),((B),"Nuclear fission",(q),"Generally possible for nuclei with low aoimic number".),((C),beta-"decay",(r),"Generally possible for nuclei with high. atomic no".),((D),"Exothermic nuclear reaction",(s),"essentially proceeds by weak nuclear forces".):}

If net force on a system of particles is zero. Then {:(,"Column I",,"Column II",),((A),"Acceleration of centre of mass",(p),"Constant",),((B),"Velocity of centre of mass",(q),"Zero",),((C ),"Momentum of centre of mass",(r ),"May br zero",),((D),"Velocity of an individual particle of the system",(s),"May be constant",):}

Match the following: {:(,"Column-I",,"Column-II"),((A),"Isobaric process",(p),"No heat exchange"),((B),"Isothermal process ",(q),"Constant pressure"),((C),"Isoentropy process",(r),"Constant internal energy"),((D),"Isochoric process",(s),"Work done is zero"):}

{:(,"Column I",,"Column II"),((A),"Dimensional variable",(p),pi),((B),"Dimensionless variable",(q),"Force"),((C),"Dimensional constant",(r),"Angle"),((D),"Dimensionless constant",(s),"Gravitational constant"):}

{:(,"Column I",,,"Column II"),((A),"Moment of inertia",,(p),"newton"//"metre"^(2)),((B),"Surface tension",,(q),"kg"//("metre-sec")),((C),"Angular acceleration",,(r),"kg-metre"^(2)),((D),"Coefficient of viscosity",,(s),"newton"//"metre"),((E),"Modulus of elasticity",,(t),"radian"//"sec"^(2)):}

In the shown expermiental setup to study photoelectric effect, two conducting electrodes are enclosed in an evacuated glass-tube as shown. A parallel beam of monochromatic light, falls on photosensitive electrodes. The emf of battery shwon is high enough such that all photoelectron ejected from left electrode will reach the right electrode. Under initial conditions photoelectrons are emitted. AS changes are made in each situation of column-I, Match the statements in column-I with results in column-II. {:(,"Column I",,"Column II"),((A),"If frequency of incident light is increased keeping its intensity constant",(p),"magnitude of stopping potential"),((B),"If frequency of incident light is increased and its intensity is decreased",(q),"current through circuit may stop"),((C),"If work function of photo sensitive electrode is increased",(r),"maximum kinetic energy of ejected photoelectrons will increase"),((D),"If intensity of incident light is increased keeping its frequency constant",(s),"saturation current will increase"):}

In Bohr's atomic model for hydrogen like atoms match the following column : {:(,"Column I",,"Column II"),((A),"If electron jumps from n = 32 to n = 1",(p),"Speed of electron will become 2 times"),((B),"If electron jumps from n = 1 to n = 4",(q),"Kinetic energy of electron will become 4 time"),((C),"If electron jumps from n = 4 to n = 4",(r),"Angular momentum of electron will becomes 2 times"),(,,(s),"Angular velocity of electron will becomes 4 times"),(,,(t),"None"):} .

The straight lines in the figure depict the variations in temperature DeltaT as a function of the amount of heat supplied Q is different process involving the change of state of a monoatomic and a diatomic ideal gas . The initial states, ( P,V,T ) of the two gases are the same . Match the processes as described, with the straight lines in the graph as numbered. {:(,"Column-I",,"Column-II"),((A),"Isobaric process of monoatomic gas." ,(p),"1" ),((B),"Isobaric process of diatomic gas" ,(q),"2" ),((C),"Isochoric process of monoatomic gas" ,(r),"Minimum at section B"), ((D),"Isochoric process of diatomic gas" ,(s),"x-axis (i.e.'Q' axis)"):}