Exam

CAT 2025 application process began on August 1, 2025. The CAT registrations dates 2025 were announced by IIM Kozhikode on July 27, 2025 through the official exam notification. The CAT application process 2025 is being conducted online at iimcat.ac.in website and the registration window is open till September 20, 2025.

These are the difference between the alpha, beta and gamma decay:

• Alpha decay: It reduces mass number by 4 and atomic number by 2. It is the emission of a helium nucleus (2 protons, 2 neutrons).
• Beta decay: It changes atomic number by ±1 but there is no change in the mass number. It involves a neutron converting into a proton (or vice versa).
• Gamma decay: Here, there is no change in the atomic or mass number, just the emission of high-energy photons.

Within a nucleus, how tightly nucleons are bound is the binding energy per nucleon. If the binding energy per nucleon is higher then it means more stable nuclei. Iron-56 is the most stable as it has one of the highest values. Both the fusion of light nuclei and the fission of heavy nuclei release energy by moving toward higher binding energy per nucleon.

The difference between the mass of a nucleus and the sum of the masses of its individual protons and neutrons is known as the mass defect. Mass defect is the key concept in understanding the nuclear stability and energy release in nuclear reactions. The binding energy is converted from the "missing" mass. The binding energy holds the nucleus together. 

 To secure a seat in the Certificate in ACT Multimedia Design Career Programme at the National Institute of Computer Arts (NICA), you must pass Class 12, be at least 18 years old, and complete the online application process. Since admission is direct and seats are limited to 15, applying early is advised.

Nehru School of Architecture accepts scores of NATA and TNEA for admission of candidates to the BArch programme. Candidates can appear for either of the entrance exams to participate in the entrance-based admission process for the BArch programme at Nehru School of Architecture. 
Candidates who are shortlisted based on their entrane scores are eligible to pay the course fee and secure their seat in the programme.