Download App

Atomic and Nuclear Physics — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsAtomic and Nuclear Physics1 Mark
MCQ
Assertion  : Radioactive nuclei emit $\beta^{-1}$  particles.
Reason      : Electrons exist inside the nucleus.
  • 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.
  • ✓
    If assertion is true but reason is false.
  • D
    If the assertion and reason both are false.
✓

Answer

Correct option: C.
If assertion is true but reason is false.
If assertion is true but reason is false.

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

Explore more

More "M.C.Q (1 Marks)" from Atomic and Nuclear Physics→Atomic and Nuclear Physics — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Heavy stable nucle have more neutrons than protons. This is because of the fact that:
→
Photoelectric emmision occurs only when the incident light has more than a certain minimum?
→
The direction of electric field created by a negative charge is ___________?
→
A solenoid is at potential difference 60 V and current flows through it is 15 ampere, then the resistance of coil will be (a) 4 Ω (b) 8 Ω(c) 0.25 Ω(d) 2 Ω
       
→
Consider the following statements A to B  and identify the correct answer
A. Polarised light can be used to study the helical surface of nucleic acids.
B. Optics axis is a direction and not any particular line in the crystal(a) A and B are correct(b) A and B are wrong(c) A is correct but B is wrong(d) A is wrong but B is correct
   
   
→
 The rate of flow of electric charge through any cross-section of a conductor is known as __________.
→
Maxwell’s equations describe the fundamental laws of(a) Electricity only(b) Magnetism only(c) Mechanics only(d) Both (a) and (b)
       
→
Assertion :  Basic difference between an electric line and magnetic line of force is that former is discontinuous and the latter is continuous or endless.
Reason     : No electric lines of forces exist inside a charged body but magnetic lines do exist inside a magnet.(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.
 
 
 
 
→
Pick the correct options.
→
Neutron decay in free space is given as follows $n^1 \rightarrow 1H^1 + e^{-1} + []$ Then the parenthesis $[]$ represents $a:$
→