Dept of Physics_Dr Meghnad Saha College

Dept of Physics_Dr Meghnad Saha College

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Official page of Dept. of Physics,Dr. Meghnad Saha College

🌴 āĻ¤ā§āϰāĻŋāϕ⧋āĻŖāĻŽāĻŋāϤāĻŋ āĻĻāĻŋāϝāĻŧ⧇ āύāĻžāϰāϕ⧇āϞ āĻ—āĻžāϛ⧇āϰ āωāĻšā§āϚāϤāĻž āĻĒāϰāĻŋāĻŽāĻžāĻĒ | Trigonometry in Real Life | Height Measurement with Scale

āĻāχ āĻ­āĻŋāĻĄāĻŋāĻ“āϤ⧇ āĻļ⧇āĻ–ā§‹ —
📐 āĻ•āĻŋāĻ­āĻžāĻŦ⧇ āĻāĻ•āϟāĻŋ āĻ¸ā§āϕ⧇āϞ āφāϰ āĻ›āĻžāϝāĻŧāĻžāϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ 
📏 āύāĻžāϰāϕ⧇āϞ āĻ—āĻžāϛ⧇āϰ āωāĻšā§āϚāϤāĻž āύāĻŋāĻ°ā§āĻŖāϝāĻŧ āĻ•āϰāĻž āϝāĻžāϝāĻŧ āĻ¤ā§āϰāĻŋāϕ⧋āĻŖāĻŽāĻŋāϤāĻŋāϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ 
📊 Real life application of tan θ formula.

tree height with scale and trigonometry.
how to measure tree height using trigonometry.
real life use of tan θ.
class 10 trigonometry project bengali.
math project in bengali.
WB TET SSC PSC trigonometry.

āĻāϟāĻž āĻŽāĻžāĻ§ā§āϝāĻŽāĻŋāĻ• āĻ—āĻŖāĻŋāϤ, TET/SSC/WBPSC āĻĒāϰ⧀āĻ•ā§āώāĻžāĻ°ā§āĻĨā§€āĻĻ⧇āϰ āϜāĻ¨ā§āϝ āĻāĻ•āĻĻāĻŽ āĻĻāϰāĻ•āĻžāϰāĻŋāĨ¤

📲 āĻ—āĻŖāĻŋāϤāϕ⧇ āĻ…āύ⧁āĻ­āĻŦ āĻ•āϰ⧋ āĻŦāĻžāĻ¸ā§āϤāĻŦ⧇, āĻŽā§āĻ–āĻ¸ā§āĻĨ āύāϝāĻŧ, āĻŽāĻžāĻĒāĻœā§‹āĻ• āĻ•āϰ⧇ āĻļ⧇āĻ–ā§‹!

#āĻ¤ā§āϰāĻŋāϕ⧋āĻŖāĻŽāĻŋāϤāĻŋ #MathInRealLife #TreeHeight #TrigonometryInBengali #HeightMeasurement #WBBSEMath #StudyWithAshish #Gyantulli #SSCPreparation #TETMath #EducationalVideo #MathShorts #GeometryProject #RealMath 09/07/2025

Too good attempt.
Thanks to the creators💐💐💐
Keep up your good work.

🌴 āĻ¤ā§āϰāĻŋāϕ⧋āĻŖāĻŽāĻŋāϤāĻŋ āĻĻāĻŋāϝāĻŧ⧇ āύāĻžāϰāϕ⧇āϞ āĻ—āĻžāϛ⧇āϰ āωāĻšā§āϚāϤāĻž āĻĒāϰāĻŋāĻŽāĻžāĻĒ | Trigonometry in Real Life | Height Measurement with Scale āĻāχ āĻ­āĻŋāĻĄāĻŋāĻ“āϤ⧇ āĻļ⧇āĻ–ā§‹ — 📐 āĻ•āĻŋāĻ­āĻžāĻŦ⧇ āĻāĻ•āϟāĻŋ āĻ¸ā§āϕ⧇āϞ āφāϰ āĻ›āĻžāϝāĻŧāĻžāϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ 📏 āύāĻžāϰāϕ⧇āϞ āĻ—āĻžāϛ⧇āϰ āωāĻšā§āϚāϤāĻž āύāĻŋāĻ°ā§āĻŖāϝāĻŧ āĻ•āϰāĻž āϝāĻžāϝāĻŧ āĻ¤ā§āϰāĻŋāϕ⧋āĻŖāĻŽāĻŋāϤāĻŋāϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ 📊 Real life application of tan θ formula. tree height with scale and trigonometry. how to measure tree height using trigonometry. real life use of tan θ. class 10 trigonometry project bengali. math project in bengali. WB TET SSC PSC trigonometry. āĻāϟāĻž āĻŽāĻžāĻ§ā§āϝāĻŽāĻŋāĻ• āĻ—āĻŖāĻŋāϤ, TET/SSC/WBPSC āĻĒāϰ⧀āĻ•ā§āώāĻžāĻ°ā§āĻĨā§€āĻĻ⧇āϰ āϜāĻ¨ā§āϝ āĻāĻ•āĻĻāĻŽ āĻĻāϰāĻ•āĻžāϰāĻŋāĨ¤ 📲 āĻ—āĻŖāĻŋāϤāϕ⧇ āĻ…āύ⧁āĻ­āĻŦ āĻ•āϰ⧋ āĻŦāĻžāĻ¸ā§āϤāĻŦ⧇, āĻŽā§āĻ–āĻ¸ā§āĻĨ āύāϝāĻŧ, āĻŽāĻžāĻĒāĻœā§‹āĻ• āĻ•āϰ⧇ āĻļ⧇āĻ–ā§‹! #āĻ¤ā§āϰāĻŋāϕ⧋āĻŖāĻŽāĻŋāϤāĻŋ #MathInRealLife #TreeHeight #TrigonometryInBengali #HeightMeasurement #WBBSEMath #StudyWithAshish #Gyantulli #SSCPreparation #TETMath #EducationalVideo #MathShorts #GeometryProject #RealMath

02/07/2025

An Interactive lecture cm One-Day Workshop on
“From Big Bang to Sub-atomic Particles: Exploring the early universe with ALICE”

(āĻŦāĻŋāĻ— āĻŦā§āϝāĻžāĻ‚ āĻĨ⧇āϕ⧇ āĻ…āϤāĻŋāĻĒāϰāĻŽāĻžāĻŖāĻŦāĻŋāĻ• āĻ•āĻŖāĻž : ALICE-āĻāϰ āϏāĻ™ā§āϗ⧇ āĻĒā§āϰāĻžāϰāĻŽā§āĻ­āĻŋāĻ• āĻŽāĻšāĻžāĻŦāĻŋāĻļā§āĻŦ⧇āϰ āĻ…āύ⧁āϏāĻ¨ā§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! đŸĒđŸ‘‡đŸģ

NASA’s 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 molecules—dimethyl sulfide (DMS) and dimethyl disulfide (DMDS)—are 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 planet—a 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 (CH₄) and carbon dioxide (CO₂) in the atmosphere, consistent with an environment that might support life.

The detection of DMS and DMDS reached a three-sigma confidence level, meaning there’s 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 16–24 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 K2-18b’s specific atmospheric conditions.

Though this doesn’t confirm life, the findings are highly significant. The planet’s 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, “It’s in no one’s interest to prematurely claim we’ve detected life. This is a groundbreaking step, but we need more data to confirm these signals.”

Whether the signals come from biology or unknown chemistry, K2-18b is rapidly becoming a landmark world in astrobiology.

RESEARCH PAPER 📄
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).

Photos from Dept of Physics_Dr Meghnad Saha College's post 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!

Photos from Dept of Physics_Dr Meghnad Saha College's post 13/08/2024

Induction Programme-2024
Dept. of Physics
Dr. Meghnad Saha College

Photos from Dept of Physics_Dr Meghnad Saha College's post 12/08/2024

Induction class of sem-I,Physics Major,2024.

25/05/2024

Promotional video of our college.
Like it and share it to your profile.

Photos from Dept of Physics_Dr Meghnad Saha College's post 13/01/2024

Glimpses of Exhibition 2024
Thank you students for your zealous participation.
You people had done a great job.
Kudos to you!!

Photos from Dept of Physics_Dr Meghnad Saha College's post 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".

Photos from Dept of Physics_Dr Meghnad Saha College's post 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.

Stressed plants ‘cry’ — and some animals can probably hear them 02/04/2023

āĻŽāĻžāĻ°ā§āĻ•āĻŋāύ āϝ⧁āĻ•ā§āϤāϰāĻžāĻˇā§āĻŸā§āϰ⧇āϰ āĻšāĻžāĻ°ā§āĻ­āĻžāĻ°ā§āĻĄ āĻāĻŦāĻ‚ āχāϏāϰāĻžāχāϞ⧇āϰ āϤ⧇āϞ āĻ…āĻ­āĻŋāĻ­ āĻŦāĻŋāĻļā§āĻŦāĻŦāĻŋāĻĻā§āϝāĻžāϞāϝāĻŧ⧇āϰ āĻŦāĻŋāĻœā§āĻžāĻžāύ⧀āĻĻ⧇āϰ āϝ⧌āĻĨ āωāĻĻā§āϝ⧋āϗ⧇ āĻ…āϤāĻŋ āϏāĻŽā§āĻĒā§āϰāϤāĻŋ āϏāĻžāĻŽāύ⧇ āĻāϏ⧇āϛ⧇ āĻāĻ• āϚāĻžāĻžā§āϚāĻ˛ā§āϝāĻ•āϰ āϤāĻĨā§āϝ!
āϤāĻžāϰāĻž āĻĻ⧇āĻ–āĻŋāϝāĻŧ⧇āϛ⧇āύ, āϜāϞ āύāĻž āĻĒāĻžāĻ“āϝāĻŧāĻž,āĻāĻ•āϟāĻŋ āϤ⧃āĻˇā§āĻŖāĻžāĻ°ā§āϤ āϚāĻžāϰāĻžāĻ—āĻžāĻ› , āĻ•āĻŋāĻ‚āĻŦāĻž āĻĄāĻžāϞāĻĒāĻžāϞāĻž āϕ⧇āĻŸā§‡ āĻĢ⧇āϞāĻž āĻ—āĻžāĻ› āϰ⧀āϤāĻŋāĻŽāϤ⧋ āϚāĻŋā§ŽāĻ•āĻžāϰ āĻ•āϰ⧇ āĻ•āĻžāρāĻĻāϛ⧇ !!!

āϝāĻĻāĻŋāĻ“ āĻāχ āĻ•āĻžāĻ¨ā§āύāĻžāϰ āĻļāĻŦā§āĻĻ āĻāĻŽāύāĻŋāϤ⧇ āφāĻŽāϰāĻž āĻļ⧁āύāϤ⧇ āĻĒāĻžāχ āύāĻž,āϤāĻžāϰ āĻ•āĻžāϰāĻŖ āĻāχ āϤāϰāĻ™ā§āĻ— ultrasonic āĻŦāĻž āĻļāĻŦā§āĻĻ-āωāĻ¤ā§āϤāϰ āϤāϰāĻ™ā§āĻ—āĨ¤āĻāϰ āĻ•āĻŽā§āĻĒāĻžāĻ™ā§āĻ• 20100 āĻ•āĻŋāϞ⧋āĻšāĻžāĻ°ā§āϟāϜāĨ¤āφāĻŽāĻžāĻĻ⧇āϰ āĻļā§āϰ⧁āϤāĻŋ āĻ—ā§‹āϚāϰ āĻļāĻŦā§āĻĻ⧇āϰ āĻ•āĻŽā§āĻĒāĻžāĻ™ā§āĻ• āϏ⧀āĻŽāĻž 20 āĻšāĻžāĻ°ā§āϟāϜ āĻĨ⧇āϕ⧇ 20 āĻ•āĻŋāϞ⧋āĻšāĻžāĻ°ā§āϟāϜāĨ¤āϤāĻŦ⧇ āĻŦ⧇āĻļ āĻ•āĻŋāϛ⧁ āĻĒā§āϰāĻžāĻŖā§€ āϝ⧇āĻŽāύ āĻŦāĻžāĻĻ⧁āĻĄāĻŧ āĻāĻŦāĻ‚ āĻ•āĻŋāϛ⧁ āĻĒāϤāĻ™ā§āĻ— āĻāχ āĻļāĻŦā§āĻĻ - āωāĻ¤ā§āϤāϰ āϤāϰāĻ™ā§āĻ— āĻļ⧁āύāϤ⧇ āĻĒāĻžāϝāĻŧāĨ¤āϤāĻŦ⧇ āĻ—āĻžāϛ⧇āϰ āĻ•āĻžāĻ¨ā§āύāĻž āĻāχ āĻĒā§āϰāĻžāĻŖā§€āϰāĻž āĻļ⧁āύāϤ⧇ āĻĒāĻžāϝāĻŧ āĻ•āĻŋāύāĻž,āϏ⧇āϟāĻž āύāĻŋāϝāĻŧ⧇ āĻŦāĻŋāĻœā§āĻžāĻžāύ⧀āϰāĻž āĻāĻ–āύ⧋ āύāĻŋāĻļā§āϚāĻŋāϤ āύāύāĨ¤āĻ•āĻžāϰāĻŖ āĻāχ āĻļāĻŦā§āĻĻ āĻāϤāχ āĻŽā§ƒāĻĻ⧁ āϝ⧇,āϖ⧁āĻŦ āĻ•āĻžāϛ⧇ āĻĨ⧇āϕ⧇āχ āĻļā§‹āύāĻž āϝ⧇āϤ⧇ āĻĒāĻžāϰ⧇ āĨ¤

āĻŦāĻŋāĻœā§āĻžāĻžāύ⧀āϰāĻž āĻ—āĻžāϛ⧇āϰ āĻ•āĻžāĻ¨ā§āύāĻž (ultrasonic) āϕ⧇ āĻŦāĻŋāĻļ⧇āώ āϝāĻ¨ā§āĻ¤ā§āϰ āĻĻā§āĻŦāĻžāϰāĻž āϰ⧇āĻ•āĻ°ā§āĻĄ āĻ•āϰ⧇āϛ⧇āύāĨ¤āϤāĻžāϰāĻĒāϰ āĻŦāĻŋāĻļ⧇āώ āωāĻĒāĻžāϝāĻŧ⧇ āĻ—āĻžāϛ⧇āϰ āĻ•āĻžāĻ¨ā§āύāĻž āϕ⧇ āĻŽāĻžāύ⧁āώ⧇āϰ āĻļā§āϰ⧁āϤāĻŋāĻ—ā§‹āϚāϰ āϤāϰāĻ™ā§āϗ⧇ āĻĒāϰāĻŋāĻŖāϤ āĻ•āϰ⧇āϛ⧇āύāĨ¤

āĻ•āĻŋāĻ¨ā§āϤ⧁ āĻĒā§āϰāĻļā§āύāϟāĻž āĻšāϞ,āĻ—āĻžāĻ› āĻ•āĻžāρāĻĻāϛ⧇ āĻ•āĻŋāĻ­āĻžāĻŦ⧇? āĻāχ āĻ•āĻžāϜāϟāĻŋāϤ⧇ āĻŦāϞāĻž āĻšāϝāĻŧ⧇āϛ⧇, āĻ—āĻžāϛ⧇āϰ āϜāĻžāχāϞ⧇āĻŽ( xylem) āĻŦāĻžāĻšāĻŋāĻ•āĻž āχ āĻšāϞ⧋ āĻ—āĻžāϛ⧇āϰ āĻ•āĻžāĻ¨ā§āύāĻžāϰ āϕ⧇āĻ¨ā§āĻĻā§āϰāĨ¤āϜāĻžāχāϞ⧇āĻŽ āĻŦāĻšāĻŋāĻ•āĻž āĻ•āĻžāĻ°ā§āϝāϤ āĻāĻ•āϟāĻŋ āύāϞ (tube), āϝāĻžāϰ āĻ•āĻžāϜ āĻšāϞ⧋ āĻ—āĻžāϛ⧇āϰ āĻļ⧇āĻ•āĻĄāĻŧ āĻĨ⧇āϕ⧇ āĻ•āĻžāĻŖā§āĻĄā§‡ āĻāĻŦāĻ‚ āĻĒāĻžāϤāĻžāϝāĻŧ āϜāϞ āĻāĻŦāĻ‚ āĻĒ⧁āĻˇā§āϟāĻŋ āϏāϰāĻŦāϰāĻžāĻš āĻ•āϰāĻžāĨ¤ āĻ—āĻžāĻ› āĻ•āĻžāρāĻĻāϤ⧇ āϚāĻžāχāϞ⧇ āĻāχ āϜāĻžāχāϞ⧇āĻŽ āĻāϰ āĻŽāĻ§ā§āϝ⧇ āĻĒā§āϰāϚ⧁āϰ āĻĒāϰāĻŋāĻŽāĻžāύ⧇ āĻŦ⧁āĻĻāĻŦ⧁āĻĻ āϤ⧈āϰ⧀ āĻ•āϰ⧇ āĻŦāĻž āĻŦ⧁āĻĻāĻŦ⧁āĻĻ āĻĢāĻžāϟāĻŋāϝāĻŧ⧇ āĻĻ⧇āϝāĻŧ, āϝāĻžāϰ āĻĢāϞ⧇ āĻāĻ•āϟāĻž āĻļāĻŦā§āĻĻ āĻļā§‹āύāĻž āϝāĻžāϝāĻŧāĨ¤ āĻāχ āĻļāĻŦā§āĻĻāχ āĻšāϞ āĻ—āĻžāϛ⧇āϰ āĻ•āĻžāĻ¨ā§āύāĻžāĨ¤
āĻāĻ•āϟāĻŋ Machine Learning āĻŽāĻĄā§‡āϞ āĻŦāĻžāύāĻŋāϝāĻŧ⧇ āĻ—āĻžāĻ› āĻĨ⧇āϕ⧇ āĻŦ⧇āϰāĻŋāϝāĻŧ⧇ āφāϏāĻž āĻļāĻŦā§āĻĻāϕ⧇ āĻŦāĻŋāĻļā§āϞ⧇āώāĻŖ āĻ•āϰ⧇ āĻŦāϞ⧇ āĻĻ⧇āϝāĻŧāĻž āϝāĻžāĻšā§āϛ⧇ āĻ—āĻžāĻ›āϟāĻž āϏāĻ¤ā§āϝāĻŋ āϝāĻ¨ā§āĻ¤ā§āϰāύāĻžāϝāĻŧ āφāϛ⧇ āĻ•āĻŋāύāĻžāĨ¤āĻĻ⧇āĻ–āĻž āϗ⧇āϛ⧇ āϝ⧇ āĻ—āĻžāĻ› āύāĻŋāϝāĻŧāĻŽāĻŋāϤ āϜāϞ āĻĒāĻžāϝāĻŧ,āϏ⧇āχ āĻ—āĻžāĻ› "āĻļāĻžāĻ¨ā§āϤ", āφāϰ āϝ⧇ āĻ—āĻžāĻ› āϜāϞ āĻĒāĻžāϝāĻŧ āύāĻž,āĻ•āĻŋāĻ‚āĻŦāĻž āϝāĻžāϰ āĻ—āĻžāϛ⧇āϰ āĻĄāĻžāϞ āϭ⧇āϙ⧇ āϗ⧇āϛ⧇,āϏ⧇āχ āĻ—āĻžāĻ› āϚāĻŋā§ŽāĻ•āĻžāϰ āĻ•āϰ⧇ "āĻ•āĻžāρāĻĻ⧇"āĨ¤ āϝāĻĻāĻŋāĻ“ āĻāχ āĻŽāĻĄā§‡āϞ āĻāĻ–āύ 70% āύāĻŋāĻ°ā§āϭ⧁āϞāĨ¤

āύāĻŋāĻšā§‡āϰ āϞāĻŋāĻ‚āĻ• āĻ āĻ—āĻžāϛ⧇āϰ āĻ•āĻžāĻ¨ā§āύāĻžāϰ āĻ…āĻĄāĻŋāĻ“ āĻĢāĻžāχāϞ āĻ“ āφāϛ⧇:

Stressed plants ‘cry’ — and some animals can probably hear them Microphones capture ultrasonic crackles from plants that are water-deprived or injured.

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Itahar Uttar Dinajpur
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