09/07/2025
Too good attempt.
Thanks to the creatorsđđđ
Keep up your good work.
Official page of Dept. of Physics,Dr. Meghnad Saha College
02/07/2025
An Interactive lecture cm One-Day Workshop on
âFrom Big Bang to Sub-atomic Particles: Exploring the early universe with ALICEâ
(āĻŦāĻŋāĻ āĻŦā§āϝāĻžāĻ āĻĨā§āĻā§ āĻ
āϤāĻŋāĻĒāϰāĻŽāĻžāĻŖāĻŦāĻŋāĻ āĻāĻŖāĻž : ALICE-āĻāϰ āϏāĻā§āĻā§ āĻĒā§āϰāĻžāϰāĻŽā§āĻāĻŋāĻ āĻŽāĻšāĻžāĻŦāĻŋāĻļā§āĻŦā§āϰ āĻ
āύā§āϏāύā§āϧāĻžāύ")
Date- 05/07/25
Time- 11:00 am onwards
Venue- Room No-S-14, Dr. Meghnad Saha College
Let's dive into the world of ALICE and explore the basics of origin of our universe in a fun and easy way. We've got a super talented young scientist who's going to share his awesome ideas with us. Should be an amazing event - can't wait to hear from Pritam Chakraborty
Please join us.
For registration click on the link given below:
https://forms.gle/L594yaXtj1p4DABA8
Thanks,
Convener
Workshop organising committee
18/04/2025
Plot twist in astronomy! đĒđđģ
NASAâs James Webb Space Telescope (JWST) has made a potentially groundbreaking discovery by detecting chemical signatures in the atmosphere of the exoplanet K2-18b, located 124 light-years away.
The moleculesâdimethyl sulfide (DMS) and dimethyl disulfide (DMDS)âare particularly intriguing because, on Earth, they are produced almost exclusively by microbial life, such as marine phytoplankton. While these findings offer some of the most compelling signs yet of possible extraterrestrial biology, scientists emphasize the need for caution and further validation.
K2-18b is classified as a Hycean planetâa world with a hydrogen-rich atmosphere and possibly a global ocean beneath it. It is about 8.6 times the mass of Earth and orbits within the habitable zone of a cool dwarf star, where conditions could allow for the presence of liquid water. Previous JWST observations had already identified methane (CHâ) and carbon dioxide (COâ) in the atmosphere, consistent with an environment that might support life.
The detection of DMS and DMDS reached a three-sigma confidence level, meaning thereâs a 0.3% chance the signal is due to random noise. However, the gold standard for scientific discovery is five-sigma, or a 0.00006% chance, so more data is needed to confirm these results. Follow-up JWST observations totaling 16â24 hours are planned to improve precision and distinguish between the two molecules. Additionally, laboratory studies will explore whether non-biological processes could also generate these compounds under K2-18bâs specific atmospheric conditions.
Though this doesnât confirm life, the findings are highly significant. The planetâs warm ocean and atmospheric makeup resemble the early Earth, making it a prime candidate in the search for life. As lead researcher Nikku Madhusudhan of the University of Cambridge cautioned, âItâs in no oneâs interest to prematurely claim weâve detected life. This is a groundbreaking step, but we need more data to confirm these signals.â
Whether the signals come from biology or unknown chemistry, K2-18b is rapidly becoming a landmark world in astrobiology.
RESEARCH PAPER đ
Nikku Madhusudhan et al., "New Constraints on DMS and DMDS in the Atmosphere of K2-18 b from JWST MIRI", The Astrophysical Journal Letters (2025).
27/11/2024
We're thrilled to announce another achievement for our department! The students of the Department of Physics at Dr. Meghnad Saha College have emerged victorious in the science mela group event at the Uttar Dinajpur District Yuva Utsav-2024. Held at Sri Agrasen Mahavidyalya in Dalkhola, the event was organized by NYKS Uttar Dinajpur in collaboration with NSS Sri Agrasen Mahavidyalya.
Our students' tireless efforts and hard work have truly paid off, and we couldn't be prouder! Their achievement will undoubtedly inspire many young students to strive for excellence. As winners, our students will now represent our college at the State Level Meet.
We wish them all the best for their future endeavors!
13/08/2024
Induction Programme-2024
Dept. of Physics
Dr. Meghnad Saha College
12/08/2024
Induction class of sem-I,Physics Major,2024.
Promotional video of our college.
Like it and share it to your profile.
13/01/2024
Glimpses of Exhibition 2024
Thank you students for your zealous participation.
You people had done a great job.
Kudos to you!!
03/12/2023
A one day special lecture on the topic: Science in Colonial Bengal and Contribution of Meghnad Saha was held on 30-11-2023. The event was organised by The Department of Physics and Department of History in association with IQAC, Dr. Meghnad Saha College.Former Scientist and eminent speaker Dr. S K Bhadra illustrated the situation of practice of science in ancient India with a beautiful and fascinating Powerpoint presentation. He discussed the evolution of science in West Bengal during the pre-independence era. He emphasized the contribution of Dr. Meghnad Saha in this regard.His entire presentation was well structured and thoughtful.The students and others teachers present there enjoyed the talk.There were many interesting anecdotes in his talk which make the talk extremely charming and interesting.The overall experience was immensely satisfying.As Mr. Jaygopal Biswas, Bursar, said "We may have to wait for a lifetime to have such kind of discussion again".
26/05/2023
In the departmental exhibition competition 2022-23, the physics department got FIRST place. The students have worked really hard. They have shown how great things can be done together with ease.I hope this ability and desire to work together will last forever.Best wishes and congratulations to them. We are proud of you.
02/04/2023
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Stressed plants âcryâ â and some animals can probably hear them Microphones capture ultrasonic crackles from plants that are water-deprived or injured.