Question:
After 4 hours,\(\frac{1}{16}\) of the initial amount of a certain radioactive isotype remains undecayed. What is the half life of the isotope?
After 4 hours,\(\frac{1}{16}\) of the initial amount of a certain radioactive isotype remains undecayed. What is the half life of the isotope?
Updated On: Mar 27, 2026
- 15 min
- 30 min
- 45 min
- 60 min
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
The correct option is(D):60 min
Was this answer helpful?
0
0
Top CUET Physics Questions
- 10 resistors, each of resistance R are connected in series to a battery of emf E and negligible internal resistance. Then those are connected in parallel to the same battery, the current is increased n times. The value of n is:
- An infinitely long wire is charged uniformly with a charge density λ and placed in the air, the electric field at a distance r from the wire will be:
- Two point charges (-q) and (+4q) are placed at that separation ‘r’. Where should a third charge be placed so that the entire system of charges becomes in equilibrium?
- A conducting sphere is charged. If the electric field at a distance of 20 cm from the center of this sphere is 1.2x103NC-1 and points radially inward, the net charge on this sphere is
- A parallel plate capacitor having cross-sectional area ‘A’ and separated by distance ‘d’ is filled by a copper plate of thickness b. its capacitance is :
View More Questions
Top CUET Nuclei Questions
- \(p→ n+v+ A\)
In this nuclear reaction A is a/an: - Match List I with List II
LIST I LIST II A. Mass of alpha particle I. 1.00727 u B. Mass of proton II. 4.00260 u C. Mass of neutron III. 0.00055 u D. Mass of electron IV. 1.00866 u Choose the correct answer from the options given below: - Choose the correct statements:
(A) A nuclide is represented as \(^Z_AX\)
(B) Nuclids with same number of protons are called isotopes
(C) a-ray scattering experiments allow determination of the nuclear radius
(D) Nuclids with same number of neutrons are called isotones
(E) The nuclear force distinguishes between neutron and proton
Choose the correct answer from the options given below: - Match List I with List II
List-I
List-II
(A) To slow down fast moving neutrons (I) Thermal neutrons (B) A neutron or a proton (II) Fission (C) Slow neutrons (III) Moderator (D) Neutron induced nuclear reaction (IV) Nucleon
Choose the correct answer from the options given below:
Top CUET Questions
Select the statements that are CORRECT regarding patterns of biodiversity.
(A) Species diversity increases as we move away from the equator towards the poles(B) The tropical Amazon rain forest in South America has the greatest biodiversity on earth.(C) There is more solar energy available in the temperate region than tropics.(D) Tropical environments are less seasonal relatively more constant and predictableWhich of the following hormone is not produced by placenta ?
- Individuals with karyotype of 44+XXY having overall masculine development with few feminine development like Gynaecomastia has _______ chromosomal disorder.
- Match List - I with List - II.Choose the correct answer from the options given below :
List - I
List - II
A Streptokinase I Blood-Cholestrol lowering agents B Cyclosporin II Clot Buster C Statins III Propionibacterium sharmanii D Swiss Cheese IV Immuno suppressive agent Which of the following option determines percolation and water holding capacity of soils ?
View More Questions