Question
Radioactivity is(a) Irreversible process(b) Self disintegration process(c) Spontaneous process(d) All of the above
   
   

Answer

(d) All of the above

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A tuning fork of frequency 480Hz is used to vibrate a sonometer wire having natural frequency 240Hz. The wire will vibrate with a frequency of:
  1. 240Hz
  2. 480Hz
  3. 720Hz
  4. Will not vibrate.
The absorption transitions between the first and the fourth energy states of hydrogen atom are 3. The emission transitions between these states will be     (a) 3 (b) 4(c) 5  (d) 6
       
A $2 \ \text{MeV}$ proton is moving perpendicular to a uniform magnetic field of $2.5$ tesla. The force on the proton is
Gauss's law in dielectric medium:
Which of the following statements can help you to determine the direction of induced current in Electromagnetic Induction?
Assertion  :  In a movie, ordinarily 24 frames are projected per second from one end to the other of the complete film.
Reason      : The image formed on retina of eye is sustained upto 1/10 second after the removal of stimulus.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
 
 
 
 
The potential gradient at which the dielectric of a condenser just gets punctured is called(a) Dielectric constant(b) Dielectric strength(c) Dielectric resistance(d) Dielectric number
       
The average e.m.f. induced in a coil in which the current changes from 2 ampere to 4 ampere in 0.05 second is 8 volt. What is the self inductance of the coil ?(a) 0.1 H(b) 0.2 H (c) 0.4 H(d) 0.8 H
       
When a photon stimulates the emission of another photon, the two photons have:
  1. Same energy.
  2. Same direction.
  3. Same phase.
  4. Same wavelength.
  5. All of the above
Demagnetisation of magnets can be done by: